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Finding the Fourth Proportional to 8,375.44, 12,552.54 and 8,157.40

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Solution

The fourth proportional to 8,375.44, 12,552.54 and 8,157.40 is: 12,225.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.44 : 12,552.54 = 8,157.40 : x
  2. Step 2: Convert to fraction form
    8,375.44/12,552.54 = 8,157.40/x
  3. Step 3: Cross multiply
    8,375.44x = 12,552.54 × 8,157.40
  4. Step 4: Simplify right side
    8,375.44x = 102,396,089.80
  5. Step 5: Solve for x
    x = 102,396,089.80/8,375.44
  6. Step 6: Final answer
    x = 12,225.76

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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.