Scale Factors & Proportions

A scale model of a whale is being built. The actual length of the whale is 65 feet. The scale of the model is 2 in : 3 ft. What will be the length of the model?

• 97.5 inches
• 30.6 inches
• 41.56 inches
• 43.33 inches

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

Scale is 1cm = 8km. Hatboro and Smithville are 24cm apart on the map, what is the actual distance between the 2 cities?

• 87 km
• 216 km 
• 33 km
• 192 km

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

A scale drawing of a billboard uses the scale 4 cm:9 ft. The length of the billboard in the drawing is 11 cm. How long is the actual billboard?

• 13 ft
• 20.75 ft
• 24.75 ft
• 22 ft

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

Solve the proportion.

• k=5
• k=3.3333333
• k=60
• k=90

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

Fairview and Rockville are 104 miles from each other. How far apart would the cities be on a map that has a scale of 1 cm : 13 miles?

Choose the correct proportion.

• $\frac{1\ cm}{13\ miles}=\frac{x\ cm}{104\ miles}$

• $\frac{1\ cm}{104\ miles}=\frac{x\ cm}{13\ miles}$

• $\frac{104\ miles}{13\ miles}=\frac{1\ cm}{x\ cm}$

• $\frac{13\ miles}{1\ cm}=\frac{x\ cm}{104\ miles}$

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

Fairview and Rockville are 104 miles from each other. How far apart would the cities be on a map that has a scale of 1 cm : 13 miles?

Solve the proportion.

• 7 cm

• 1352 cm

• 8 cm

• 4 cm

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

The scale drawing of a giraffe has a scale in which 2 inches represents 15 feet. How tall is the actual giraffe?

• 14.25 ft

• 18.75 ft

• 18.65 ft

• 16.50

Tags

CCSS.7.G.A.1

• 200 ft

• 12.5 ft

• 100 ft

• 50 ft

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

• 24 in

• 96 in

• 72 in

• 62 in

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.3

The art class is planning to paint a mural on an outside wall. This figure is a scale drawing of the wall. If the height of the scale drawing is 11 inches, what is the height of the actual drawing?

• 7.5 ft

• 13.5 ft

• 14.75 ft

• 16.5 ft

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2