Proportions

The Cross Product can help you in many ways.It could help you find the product of the numerator or the denominator for your answer.

2/3 = x/12 ; 2x = 36 ; x =18

They Was supposed to do cross Multiplication and find what x equals to.Then they will have to multiply 3 and x , 2 and 12.Last then you had found what x equals to and x = 8

6 2 = 90
45 15 = 90 Their Proportion