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Finding the Fourth Proportional to 8,767, 13,155.28 and 5,076.44

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Solution

The fourth proportional to 8,767, 13,155.28 and 5,076.44 is: 7,617.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,767 : 13,155.28 = 5,076.44 : x
  2. Step 2: Convert to fraction form
    8,767/13,155.28 = 5,076.44/x
  3. Step 3: Cross multiply
    8,767x = 13,155.28 × 5,076.44
  4. Step 4: Simplify right side
    8,767x = 66,781,989.60
  5. Step 5: Solve for x
    x = 66,781,989.60/8,767
  6. Step 6: Final answer
    x = 7,617.43

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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.