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Finding the Fourth Proportional to 8,786.88, 13,179.90 and 6,326.08

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Solution

The fourth proportional to 8,786.88, 13,179.90 and 6,326.08 is: 9,488.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.88 : 13,179.90 = 6,326.08 : x
  2. Step 2: Convert to fraction form
    8,786.88/13,179.90 = 6,326.08/x
  3. Step 3: Cross multiply
    8,786.88x = 13,179.90 × 6,326.08
  4. Step 4: Simplify right side
    8,786.88x = 83,377,101.79
  5. Step 5: Solve for x
    x = 83,377,101.79/8,786.88
  6. Step 6: Final answer
    x = 9,488.82

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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.