Home / 11,490.35-17,231.85-4,469.90

Finding the Fourth Proportional to 11,490.35, 17,231.85 and 4,469.90

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Solution

The fourth proportional to 11,490.35, 17,231.85 and 4,469.90 is: 6,703.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,490.35 : 17,231.85 = 4,469.90 : x
  2. Step 2: Convert to fraction form
    11,490.35/17,231.85 = 4,469.90/x
  3. Step 3: Cross multiply
    11,490.35x = 17,231.85 × 4,469.90
  4. Step 4: Simplify right side
    11,490.35x = 77,024,560.16
  5. Step 5: Solve for x
    x = 77,024,560.16/11,490.35
  6. Step 6: Final answer
    x = 6,703.42

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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.