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Finding the Fourth Proportional to 8,818.61, 13,229.87 and 2,975.09

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Solution

The fourth proportional to 8,818.61, 13,229.87 and 2,975.09 is: 4,463.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.61 : 13,229.87 = 2,975.09 : x
  2. Step 2: Convert to fraction form
    8,818.61/13,229.87 = 2,975.09/x
  3. Step 3: Cross multiply
    8,818.61x = 13,229.87 × 2,975.09
  4. Step 4: Simplify right side
    8,818.61x = 39,359,972.91
  5. Step 5: Solve for x
    x = 39,359,972.91/8,818.61
  6. Step 6: Final answer
    x = 4,463.29

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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.