Home / 8,781.38-13,164.66-4,098.90

Finding the Fourth Proportional to 8,781.38, 13,164.66 and 4,098.90

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Solution

The fourth proportional to 8,781.38, 13,164.66 and 4,098.90 is: 6,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,781.38 : 13,164.66 = 4,098.90 : x
  2. Step 2: Convert to fraction form
    8,781.38/13,164.66 = 4,098.90/x
  3. Step 3: Cross multiply
    8,781.38x = 13,164.66 × 4,098.90
  4. Step 4: Simplify right side
    8,781.38x = 53,960,674.24
  5. Step 5: Solve for x
    x = 53,960,674.24/8,781.38
  6. Step 6: Final answer
    x = 6,144.90

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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.