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Finding the Fourth Proportional to 8,397.56, 12,570.80 and 5,601.85

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Solution

The fourth proportional to 8,397.56, 12,570.80 and 5,601.85 is: 8,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,397.56 : 12,570.80 = 5,601.85 : x
  2. Step 2: Convert to fraction form
    8,397.56/12,570.80 = 5,601.85/x
  3. Step 3: Cross multiply
    8,397.56x = 12,570.80 × 5,601.85
  4. Step 4: Simplify right side
    8,397.56x = 70,419,676.54
  5. Step 5: Solve for x
    x = 70,419,676.54/8,397.56
  6. Step 6: Final answer
    x = 8,385.73

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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.