Home / 8,731.26-13,089.18-3,469.97

Finding the Fourth Proportional to 8,731.26, 13,089.18 and 3,469.97

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Solution

The fourth proportional to 8,731.26, 13,089.18 and 3,469.97 is: 5,201.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.26 : 13,089.18 = 3,469.97 : x
  2. Step 2: Convert to fraction form
    8,731.26/13,089.18 = 3,469.97/x
  3. Step 3: Cross multiply
    8,731.26x = 13,089.18 × 3,469.97
  4. Step 4: Simplify right side
    8,731.26x = 45,419,061.92
  5. Step 5: Solve for x
    x = 45,419,061.92/8,731.26
  6. Step 6: Final answer
    x = 5,201.89

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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.