Answer:
x=5
Explanation:
To find the value of x, we need to first set up the proportion using the given information. Since the given values are in proportion, we can set up the proportion as follows:
x / 10 = (2x - 4) / 12
Next, we can cross-multiply to solve for the value of x:
12x = 10(2x - 4)
12x = 20x - 40
-8x = -40
x = 5
Thus, the value of x is 5. This means that the other values in the proportion are also 5, 10, 10, and 12, respectively.