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Finding the Fourth Proportional to 8,498.80, 12,748.20 and 3,308.32

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Solution

The fourth proportional to 8,498.80, 12,748.20 and 3,308.32 is: 4,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,498.80 : 12,748.20 = 3,308.32 : x
  2. Step 2: Convert to fraction form
    8,498.80/12,748.20 = 3,308.32/x
  3. Step 3: Cross multiply
    8,498.80x = 12,748.20 × 3,308.32
  4. Step 4: Simplify right side
    8,498.80x = 42,175,125.02
  5. Step 5: Solve for x
    x = 42,175,125.02/8,498.80
  6. Step 6: Final answer
    x = 4,962.48

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Similar ratio
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1.5x scale

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.