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Finding the Fourth Proportional to 8,400.96, 12,597.12 and 3,781.44

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Solution

The fourth proportional to 8,400.96, 12,597.12 and 3,781.44 is: 5,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.96 : 12,597.12 = 3,781.44 : x
  2. Step 2: Convert to fraction form
    8,400.96/12,597.12 = 3,781.44/x
  3. Step 3: Cross multiply
    8,400.96x = 12,597.12 × 3,781.44
  4. Step 4: Simplify right side
    8,400.96x = 47,635,253.45
  5. Step 5: Solve for x
    x = 47,635,253.45/8,400.96
  6. Step 6: Final answer
    x = 5,670.22

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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.