Solving Proportions Cross Products with Variable

Solve this proportion for X.

• x = 3

• x = 1

• x = 12

• x = 48

• 8

• 10

• 12

• 14

Solve the proportion below:

• 3

• 24

• 21

• 12

Solve for x 

• x = 15

• x = 11

• x = 1/11

• x = 20

Solve for x

• 3/2

• 2/3

• 3

• 2

Cross Multiply/Cross Products

• 75

• 28

• 36

• 24

Solve for x

• 1/2

• 25/8

• 11

• 53/4

Cross Multiply/Cross Products

• 80

• 45

• 3

• 240

Solve the proportion:

• 15

• 5

• 10

• 12

Are the two ratios proportional?

• YES

• NO