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Finding the Fourth Proportional to 8,808.67, 13,213.01 and 6,456.43

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Solution

The fourth proportional to 8,808.67, 13,213.01 and 6,456.43 is: 9,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.67 : 13,213.01 = 6,456.43 : x
  2. Step 2: Convert to fraction form
    8,808.67/13,213.01 = 6,456.43/x
  3. Step 3: Cross multiply
    8,808.67x = 13,213.01 × 6,456.43
  4. Step 4: Simplify right side
    8,808.67x = 85,308,874.15
  5. Step 5: Solve for x
    x = 85,308,874.15/8,808.67
  6. Step 6: Final answer
    x = 9,684.65

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Half scale
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Double scale
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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.