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Finding the Fourth Proportional to 19,660.59, 29,484 and 6,509.43

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Solution

The fourth proportional to 19,660.59, 29,484 and 6,509.43 is: 9,761.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.59 : 29,484 = 6,509.43 : x
  2. Step 2: Convert to fraction form
    19,660.59/29,484 = 6,509.43/x
  3. Step 3: Cross multiply
    19,660.59x = 29,484 × 6,509.43
  4. Step 4: Simplify right side
    19,660.59x = 191,924,034.12
  5. Step 5: Solve for x
    x = 191,924,034.12/19,660.59
  6. Step 6: Final answer
    x = 9,761.87

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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.