Home / 10,488.38-15,732.59-3,917.66

Finding the Fourth Proportional to 10,488.38, 15,732.59 and 3,917.66

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Solution

The fourth proportional to 10,488.38, 15,732.59 and 3,917.66 is: 5,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,488.38 : 15,732.59 = 3,917.66 : x
  2. Step 2: Convert to fraction form
    10,488.38/15,732.59 = 3,917.66/x
  3. Step 3: Cross multiply
    10,488.38x = 15,732.59 × 3,917.66
  4. Step 4: Simplify right side
    10,488.38x = 61,634,840.29
  5. Step 5: Solve for x
    x = 61,634,840.29/10,488.38
  6. Step 6: Final answer
    x = 5,876.49

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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.