Home / 11,171.48-16,758-3,380.88

Finding the Fourth Proportional to 11,171.48, 16,758 and 3,380.88

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Solution

The fourth proportional to 11,171.48, 16,758 and 3,380.88 is: 5,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.48 : 16,758 = 3,380.88 : x
  2. Step 2: Convert to fraction form
    11,171.48/16,758 = 3,380.88/x
  3. Step 3: Cross multiply
    11,171.48x = 16,758 × 3,380.88
  4. Step 4: Simplify right side
    11,171.48x = 56,656,787.04
  5. Step 5: Solve for x
    x = 56,656,787.04/11,171.48
  6. Step 6: Final answer
    x = 5,071.56

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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.