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Finding the Fourth Proportional to 8,922.48, 13,385.04 and 8,375.76

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Solution

The fourth proportional to 8,922.48, 13,385.04 and 8,375.76 is: 12,564.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.48 : 13,385.04 = 8,375.76 : x
  2. Step 2: Convert to fraction form
    8,922.48/13,385.04 = 8,375.76/x
  3. Step 3: Cross multiply
    8,922.48x = 13,385.04 × 8,375.76
  4. Step 4: Simplify right side
    8,922.48x = 112,109,882.63
  5. Step 5: Solve for x
    x = 112,109,882.63/8,922.48
  6. Step 6: Final answer
    x = 12,564.88

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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.