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Finding the Fourth Proportional to 8,876.78, 12,249.93 and 4,897.88

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Solution

The fourth proportional to 8,876.78, 12,249.93 and 4,897.88 is: 6,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.78 : 12,249.93 = 4,897.88 : x
  2. Step 2: Convert to fraction form
    8,876.78/12,249.93 = 4,897.88/x
  3. Step 3: Cross multiply
    8,876.78x = 12,249.93 × 4,897.88
  4. Step 4: Simplify right side
    8,876.78x = 59,998,687.15
  5. Step 5: Solve for x
    x = 59,998,687.15/8,876.78
  6. Step 6: Final answer
    x = 6,759.06

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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.