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Finding the Fourth Proportional to 8,644.57, 12,966.94 and 2,801.18

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Solution

The fourth proportional to 8,644.57, 12,966.94 and 2,801.18 is: 4,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.57 : 12,966.94 = 2,801.18 : x
  2. Step 2: Convert to fraction form
    8,644.57/12,966.94 = 2,801.18/x
  3. Step 3: Cross multiply
    8,644.57x = 12,966.94 × 2,801.18
  4. Step 4: Simplify right side
    8,644.57x = 36,322,753.15
  5. Step 5: Solve for x
    x = 36,322,753.15/8,644.57
  6. Step 6: Final answer
    x = 4,201.80

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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.