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Finding the Fourth Proportional to 8,869.65, 13,306.43 and 2,630.15

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Solution

The fourth proportional to 8,869.65, 13,306.43 and 2,630.15 is: 3,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.65 : 13,306.43 = 2,630.15 : x
  2. Step 2: Convert to fraction form
    8,869.65/13,306.43 = 2,630.15/x
  3. Step 3: Cross multiply
    8,869.65x = 13,306.43 × 2,630.15
  4. Step 4: Simplify right side
    8,869.65x = 34,997,906.86
  5. Step 5: Solve for x
    x = 34,997,906.86/8,869.65
  6. Step 6: Final answer
    x = 3,945.80

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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.