Home / 10,086.12-15,129.18-3,066.12

Finding the Fourth Proportional to 10,086.12, 15,129.18 and 3,066.12

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Solution

The fourth proportional to 10,086.12, 15,129.18 and 3,066.12 is: 4,599.18

Step by Step Solution

Step 1: Write the proportion equation
10,086.12 : 15,129.18 = 3,066.12 : x
Step 2: Convert to fraction form
10,086.12/15,129.18 = 3,066.12/x
Step 3: Cross multiply
10,086.12x = 15,129.18 × 3,066.12
Step 4: Simplify right side
10,086.12x = 46,387,881.38
Step 5: Solve for x
x = 46,387,881.38/10,086.12
Step 6: Final answer
x = 4,599.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.