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Finding the Fourth Proportional to 8,881.59, 12,257.19 and 5,105.97

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Solution

The fourth proportional to 8,881.59, 12,257.19 and 5,105.97 is: 7,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,881.59 : 12,257.19 = 5,105.97 : x
  2. Step 2: Convert to fraction form
    8,881.59/12,257.19 = 5,105.97/x
  3. Step 3: Cross multiply
    8,881.59x = 12,257.19 × 5,105.97
  4. Step 4: Simplify right side
    8,881.59x = 62,584,844.42
  5. Step 5: Solve for x
    x = 62,584,844.42/8,881.59
  6. Step 6: Final answer
    x = 7,046.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.