Home / 11,272.98-16,910.28-3,480.78

Finding the Fourth Proportional to 11,272.98, 16,910.28 and 3,480.78

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Solution

The fourth proportional to 11,272.98, 16,910.28 and 3,480.78 is: 5,221.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,272.98 : 16,910.28 = 3,480.78 : x
  2. Step 2: Convert to fraction form
    11,272.98/16,910.28 = 3,480.78/x
  3. Step 3: Cross multiply
    11,272.98x = 16,910.28 × 3,480.78
  4. Step 4: Simplify right side
    11,272.98x = 58,860,964.42
  5. Step 5: Solve for x
    x = 58,860,964.42/11,272.98
  6. Step 6: Final answer
    x = 5,221.42

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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.