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Finding the Fourth Proportional to 8,809.88, 13,217.04 and 6,217.88

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Solution

The fourth proportional to 8,809.88, 13,217.04 and 6,217.88 is: 9,328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.88 : 13,217.04 = 6,217.88 : x
  2. Step 2: Convert to fraction form
    8,809.88/13,217.04 = 6,217.88/x
  3. Step 3: Cross multiply
    8,809.88x = 13,217.04 × 6,217.88
  4. Step 4: Simplify right side
    8,809.88x = 82,181,968.68
  5. Step 5: Solve for x
    x = 82,181,968.68/8,809.88
  6. Step 6: Final answer
    x = 9,328.39

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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.