calculate x for each ratios with steps by steps 9:21=x:7

Answer 1

To find the value of x in the given ratio, we can use the proportion method.

First, let's set up the proportion:

9/21 = x/7

To solve this, we can cross-multiply:

9 * 7 = 21 * x

63 = 21x

Now, let's isolate x by dividing both sides of the equation by 21:

63/21 = 21x/21

3 = x

Therefore, x = 3.