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Finding the Fourth Proportional to 8,446.72, 11,659.68 and 7,560.88

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Solution

The fourth proportional to 8,446.72, 11,659.68 and 7,560.88 is: 10,436.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.72 : 11,659.68 = 7,560.88 : x
  2. Step 2: Convert to fraction form
    8,446.72/11,659.68 = 7,560.88/x
  3. Step 3: Cross multiply
    8,446.72x = 11,659.68 × 7,560.88
  4. Step 4: Simplify right side
    8,446.72x = 88,157,441.32
  5. Step 5: Solve for x
    x = 88,157,441.32/8,446.72
  6. Step 6: Final answer
    x = 10,436.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.