Home / 10,782.92-16,174.49-3,387.22

Finding the Fourth Proportional to 10,782.92, 16,174.49 and 3,387.22

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Solution

The fourth proportional to 10,782.92, 16,174.49 and 3,387.22 is: 5,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,782.92 : 16,174.49 = 3,387.22 : x
  2. Step 2: Convert to fraction form
    10,782.92/16,174.49 = 3,387.22/x
  3. Step 3: Cross multiply
    10,782.92x = 16,174.49 × 3,387.22
  4. Step 4: Simplify right side
    10,782.92x = 54,786,498.65
  5. Step 5: Solve for x
    x = 54,786,498.65/10,782.92
  6. Step 6: Final answer
    x = 5,080.86

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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.