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Finding the Fourth Proportional to 8,806.24, 13,230 and 8,308.08

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Solution

The fourth proportional to 8,806.24, 13,230 and 8,308.08 is: 12,481.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.24 : 13,230 = 8,308.08 : x
  2. Step 2: Convert to fraction form
    8,806.24/13,230 = 8,308.08/x
  3. Step 3: Cross multiply
    8,806.24x = 13,230 × 8,308.08
  4. Step 4: Simplify right side
    8,806.24x = 109,915,898.40
  5. Step 5: Solve for x
    x = 109,915,898.40/8,806.24
  6. Step 6: Final answer
    x = 12,481.59

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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.