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Finding the Fourth Proportional to 8,086.88, 12,128.97 and 2,241.92

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Solution

The fourth proportional to 8,086.88, 12,128.97 and 2,241.92 is: 3,362.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.88 : 12,128.97 = 2,241.92 : x
  2. Step 2: Convert to fraction form
    8,086.88/12,128.97 = 2,241.92/x
  3. Step 3: Cross multiply
    8,086.88x = 12,128.97 × 2,241.92
  4. Step 4: Simplify right side
    8,086.88x = 27,192,180.42
  5. Step 5: Solve for x
    x = 27,192,180.42/8,086.88
  6. Step 6: Final answer
    x = 3,362.51

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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.