Home / 12,286.44-18,432.82-3,521.96

Finding the Fourth Proportional to 12,286.44, 18,432.82 and 3,521.96

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Solution

The fourth proportional to 12,286.44, 18,432.82 and 3,521.96 is: 5,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.44 : 18,432.82 = 3,521.96 : x
  2. Step 2: Convert to fraction form
    12,286.44/18,432.82 = 3,521.96/x
  3. Step 3: Cross multiply
    12,286.44x = 18,432.82 × 3,521.96
  4. Step 4: Simplify right side
    12,286.44x = 64,919,654.73
  5. Step 5: Solve for x
    x = 64,919,654.73/12,286.44
  6. Step 6: Final answer
    x = 5,283.85

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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.