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Finding the Fourth Proportional to 8,338.75, 12,508.13 and 3,953.82

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Solution

The fourth proportional to 8,338.75, 12,508.13 and 3,953.82 is: 5,930.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.75 : 12,508.13 = 3,953.82 : x
  2. Step 2: Convert to fraction form
    8,338.75/12,508.13 = 3,953.82/x
  3. Step 3: Cross multiply
    8,338.75x = 12,508.13 × 3,953.82
  4. Step 4: Simplify right side
    8,338.75x = 49,454,853.40
  5. Step 5: Solve for x
    x = 49,454,853.40/8,338.75
  6. Step 6: Final answer
    x = 5,930.73

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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.