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Finding the Fourth Proportional to 8,899.62, 13,327.56 and 7,132.20

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Solution

The fourth proportional to 8,899.62, 13,327.56 and 7,132.20 is: 10,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,899.62 : 13,327.56 = 7,132.20 : x
  2. Step 2: Convert to fraction form
    8,899.62/13,327.56 = 7,132.20/x
  3. Step 3: Cross multiply
    8,899.62x = 13,327.56 × 7,132.20
  4. Step 4: Simplify right side
    8,899.62x = 95,054,823.43
  5. Step 5: Solve for x
    x = 95,054,823.43/8,899.62
  6. Step 6: Final answer
    x = 10,680.77

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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.