Home / 11,480.38-17,218.30-3,158.25

Finding the Fourth Proportional to 11,480.38, 17,218.30 and 3,158.25

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Solution

The fourth proportional to 11,480.38, 17,218.30 and 3,158.25 is: 4,736.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.38 : 17,218.30 = 3,158.25 : x
  2. Step 2: Convert to fraction form
    11,480.38/17,218.30 = 3,158.25/x
  3. Step 3: Cross multiply
    11,480.38x = 17,218.30 × 3,158.25
  4. Step 4: Simplify right side
    11,480.38x = 54,379,695.98
  5. Step 5: Solve for x
    x = 54,379,695.98/11,480.38
  6. Step 6: Final answer
    x = 4,736.75

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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.