Solving Proportion Ratios

Solve the proportion:

• 4

• 8

• 14

• 10

Solve the proportion.

• 1

• 3

• 6

• 5

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

Do the ratios form a proportion?

• Yes, they form a proportion.

• No, they do not form a proportion.

Solve for x 

• x = 16

• x = 28

• x = 1/26

• x = 26

Solve the proportion.

• 10.8

• 7.5

The ratio of black keys to white keys on a piano is 5 to 7.  Complete the table to create additional equivalent ratios.​

d

c

e

f

63

35

28

21

84

55

An elevator moves at a constant rate of 18 feet in 3 seconds. A second elevator moves at a constant rate of 40 feet in 5 seconds.

The situation ​ ​ (a)   a proportional relationship because ​ (b)  

• does not represent

• the ratios are different

• represents

• the ratios are equivalent

The ratio of black keys to white keys on a piano is 5 to 7.  Complete the table to create additional equivalent ratios.

d

c

e

f

63

35

84

28

55

21

The ratio of black keys to white keys on a piano is 5 to 7.  Complete the table to create additional equivalent ratios.

d

c

e

f

28

55

35

84

63

21