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Finding the Fourth Proportional to 8,664.22, 12,996.33 and 4,963.90

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Solution

The fourth proportional to 8,664.22, 12,996.33 and 4,963.90 is: 7,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,664.22 : 12,996.33 = 4,963.90 : x
  2. Step 2: Convert to fraction form
    8,664.22/12,996.33 = 4,963.90/x
  3. Step 3: Cross multiply
    8,664.22x = 12,996.33 × 4,963.90
  4. Step 4: Simplify right side
    8,664.22x = 64,512,482.49
  5. Step 5: Solve for x
    x = 64,512,482.49/8,664.22
  6. Step 6: Final answer
    x = 7,445.85

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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.