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Finding the Fourth Proportional to 8,338.32, 12,500.64 and 3,654.90

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Solution

The fourth proportional to 8,338.32, 12,500.64 and 3,654.90 is: 5,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.32 : 12,500.64 = 3,654.90 : x
  2. Step 2: Convert to fraction form
    8,338.32/12,500.64 = 3,654.90/x
  3. Step 3: Cross multiply
    8,338.32x = 12,500.64 × 3,654.90
  4. Step 4: Simplify right side
    8,338.32x = 45,688,589.14
  5. Step 5: Solve for x
    x = 45,688,589.14/8,338.32
  6. Step 6: Final answer
    x = 5,479.35

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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.