In the proportion 6 : x :: 9 : 12, the value of x is?
In the proportion 6 : x :: 9 : 12, the value of x is?
Explanation
Given the proportion:
6 : x :: 9 : 12
We can write it as:
6/x = 9/12
Cross-multiplying:
6 × 12 = 9 × x
72 = 9x
x = 72/9
x = 8
Given the proportion:
6 : x :: 9 : 12
We can write it as:
6/x = 9/12
Cross-multiplying:
6 × 12 = 9 × x
72 = 9x
x = 72/9
x = 8