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Finding the Fourth Proportional to 8,043.60, 12,061.80 and 3,658.80

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Solution

The fourth proportional to 8,043.60, 12,061.80 and 3,658.80 is: 5,486.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,043.60 : 12,061.80 = 3,658.80 : x
  2. Step 2: Convert to fraction form
    8,043.60/12,061.80 = 3,658.80/x
  3. Step 3: Cross multiply
    8,043.60x = 12,061.80 × 3,658.80
  4. Step 4: Simplify right side
    8,043.60x = 44,131,713.84
  5. Step 5: Solve for x
    x = 44,131,713.84/8,043.60
  6. Step 6: Final answer
    x = 5,486.56

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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.