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Finding the Fourth Proportional to 8,761.48, 13,046.81 and 8,664.52

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Solution

The fourth proportional to 8,761.48, 13,046.81 and 8,664.52 is: 12,902.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.48 : 13,046.81 = 8,664.52 : x
  2. Step 2: Convert to fraction form
    8,761.48/13,046.81 = 8,664.52/x
  3. Step 3: Cross multiply
    8,761.48x = 13,046.81 × 8,664.52
  4. Step 4: Simplify right side
    8,761.48x = 113,044,346.18
  5. Step 5: Solve for x
    x = 113,044,346.18/8,761.48
  6. Step 6: Final answer
    x = 12,902.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.