Question

In the proportion x over 5 equals 15 over 3 , which number is equal to x in the proportion?

Answer 1

Start by cross multiplying.

3x=75

Now just solve like any other equation.

Divide both sides by 3

25=x

Hope this helps!

Answer 2

Answer:

x = 25

Step-by-step explanation:

We are given a word phrase:

In the proportion x over 5 equals 15 over 3 , which number is equal to x in the proportion?

So we will translate it to make it easier to solve.

Proportion x over 5 ---> $\frac{x}{5}$

equals ---> =

15 over 3 ---> $\frac{15}{3}$

Combining them, we get:

$\frac{x}{5} =\frac{15}{3}$

Solving this for x using cross multiplication:

$x=\frac{15*5}{3}\\ \\x=\frac{75}{3} \\\\x=25$

Therefore, x = 25.