Home / 10,082.57-15,129.92-3,513.38

Finding the Fourth Proportional to 10,082.57, 15,129.92 and 3,513.38

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Solution

The fourth proportional to 10,082.57, 15,129.92 and 3,513.38 is: 5,272.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.57 : 15,129.92 = 3,513.38 : x
  2. Step 2: Convert to fraction form
    10,082.57/15,129.92 = 3,513.38/x
  3. Step 3: Cross multiply
    10,082.57x = 15,129.92 × 3,513.38
  4. Step 4: Simplify right side
    10,082.57x = 53,157,091.46
  5. Step 5: Solve for x
    x = 53,157,091.46/10,082.57
  6. Step 6: Final answer
    x = 5,272.18

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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.