Proportion Scale Drawings

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

Jamie made a scale drawing of his apartment building.  The building is 300 ft tall.  He wants his scale to be 1 inch : 10 ft.  How tall should his building be in his scale drawing?

• 25 inches

• 60 inches

• 1/30 inch

• 30 inches

A map has a scale of 1 cm=5km.  On the map, two cities are 3 cm apart. What is the actual distance between these cities? 

• 7 km

• 5 km

• 15 km

• 17 km 

Pam drew a scale drawing of a game room. She used the scale 1 inch : 2 feet. If the air hockey table is 5 inches in the drawing, how long is the actual air hockey table?

• 10 Feet

• 2.5 Feet

• 5 Feet

• 15 Feet

• F

• G

• H

• J

A scale drawing of 

      a billboard is shown below.

What will be the length of the bat on the billboard, in feet?

• 3 feet

• 6.25 feet

• 18.75 feet

• 37.50 feet

Leon created a scale drawing of the school library in his art class. In the scale drawing, the length of the library is 13 inches. The length of the actual library is 78 feet. Which scale did Leon use to create the scale drawing of the school library?

• 1 inch represents 6 feet

• 6 inches represents 1 foot

A model of a house was built using the scale 5 in:25 ft. If a window in the model is 1.5 in. wide, how wide is the actual window?

• 90 ft

• 7.5 ft 

• 4.5 ft

• 45 in

If the actual width of the backyard is 49 feet, how wide is it in the drawing?

• 14 in

• 7 in

• 42 in

• 56 in

Solve the proportion:

• 4

• 8

• 14

• 10