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Finding the Fourth Proportional to 8,157.52, 12,236.92 and 3,540.88

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Solution

The fourth proportional to 8,157.52, 12,236.92 and 3,540.88 is: 5,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.52 : 12,236.92 = 3,540.88 : x
  2. Step 2: Convert to fraction form
    8,157.52/12,236.92 = 3,540.88/x
  3. Step 3: Cross multiply
    8,157.52x = 12,236.92 × 3,540.88
  4. Step 4: Simplify right side
    8,157.52x = 43,329,465.29
  5. Step 5: Solve for x
    x = 43,329,465.29/8,157.52
  6. Step 6: Final answer
    x = 5,311.60

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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.