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Finding the Fourth Proportional to 12,481, 18,735.90 and 6,337.96

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Solution

The fourth proportional to 12,481, 18,735.90 and 6,337.96 is: 9,514.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481 : 18,735.90 = 6,337.96 : x
  2. Step 2: Convert to fraction form
    12,481/18,735.90 = 6,337.96/x
  3. Step 3: Cross multiply
    12,481x = 18,735.90 × 6,337.96
  4. Step 4: Simplify right side
    12,481x = 118,747,384.76
  5. Step 5: Solve for x
    x = 118,747,384.76/12,481
  6. Step 6: Final answer
    x = 9,514.25

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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.