Home / 10,082.59-15,125.49-2,687.65

Finding the Fourth Proportional to 10,082.59, 15,125.49 and 2,687.65

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Solution

The fourth proportional to 10,082.59, 15,125.49 and 2,687.65 is: 4,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.59 : 15,125.49 = 2,687.65 : x
  2. Step 2: Convert to fraction form
    10,082.59/15,125.49 = 2,687.65/x
  3. Step 3: Cross multiply
    10,082.59x = 15,125.49 × 2,687.65
  4. Step 4: Simplify right side
    10,082.59x = 40,652,023.20
  5. Step 5: Solve for x
    x = 40,652,023.20/10,082.59
  6. Step 6: Final answer
    x = 4,031.90

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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.