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Finding the Fourth Proportional to 8,680.20, 12,944.08 and 8,601.26

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Solution

The fourth proportional to 8,680.20, 12,944.08 and 8,601.26 is: 12,826.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.20 : 12,944.08 = 8,601.26 : x
  2. Step 2: Convert to fraction form
    8,680.20/12,944.08 = 8,601.26/x
  3. Step 3: Cross multiply
    8,680.20x = 12,944.08 × 8,601.26
  4. Step 4: Simplify right side
    8,680.20x = 111,335,397.54
  5. Step 5: Solve for x
    x = 111,335,397.54/8,680.20
  6. Step 6: Final answer
    x = 12,826.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.