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Finding the Fourth Proportional to 8,882.87, 13,327.03 and 6,389.69

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Solution

The fourth proportional to 8,882.87, 13,327.03 and 6,389.69 is: 9,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,882.87 : 13,327.03 = 6,389.69 : x
  2. Step 2: Convert to fraction form
    8,882.87/13,327.03 = 6,389.69/x
  3. Step 3: Cross multiply
    8,882.87x = 13,327.03 × 6,389.69
  4. Step 4: Simplify right side
    8,882.87x = 85,155,531.67
  5. Step 5: Solve for x
    x = 85,155,531.67/8,882.87
  6. Step 6: Final answer
    x = 9,586.49

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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.