Home / 9,687.38-14,531.20-2,761.88

Finding the Fourth Proportional to 9,687.38, 14,531.20 and 2,761.88

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Solution

The fourth proportional to 9,687.38, 14,531.20 and 2,761.88 is: 4,142.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687.38 : 14,531.20 = 2,761.88 : x
  2. Step 2: Convert to fraction form
    9,687.38/14,531.20 = 2,761.88/x
  3. Step 3: Cross multiply
    9,687.38x = 14,531.20 × 2,761.88
  4. Step 4: Simplify right side
    9,687.38x = 40,133,351.10
  5. Step 5: Solve for x
    x = 40,133,351.10/9,687.38
  6. Step 6: Final answer
    x = 4,142.85

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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.