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Finding the Fourth Proportional to 8,818.56, 13,227.84 and 4,187.52

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Solution

The fourth proportional to 8,818.56, 13,227.84 and 4,187.52 is: 6,281.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.56 : 13,227.84 = 4,187.52 : x
  2. Step 2: Convert to fraction form
    8,818.56/13,227.84 = 4,187.52/x
  3. Step 3: Cross multiply
    8,818.56x = 13,227.84 × 4,187.52
  4. Step 4: Simplify right side
    8,818.56x = 55,391,844.56
  5. Step 5: Solve for x
    x = 55,391,844.56/8,818.56
  6. Step 6: Final answer
    x = 6,281.28

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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.