Question

What is the value of x in this proportion?

Answer 1

X = 6

Explanation:

Cross Multiplication

We can go about this 1 of 2 ways we can either cross multiply or divide across the numerators and denominators. Let's cross multiply. We would 4*9 = 6x. Which would simplify down to 36 = 6x. We would then divide the 6 on each sides of the equation to get 6 = X.

Dividing Across

The other way we can go about it is by seeing what 4 had to be multiplied by to get to 6. We do this by dividing 6 by for which gets us 3/2 or 1.5. Now that we know this we would then divide 9 by 3/2 or 1.5 to get the answer of 6.

Answer 2

x=6

Solution,

`(4)/(x) = (6)/(9 ) \\ or \: 6 * x = 4 * 9(cross \: multiplication) \\ or \: 6x = 36 \\ or \: x = (36)/(6) \\ x = 6`

hope this helps..

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