Home / 10,117.24-15,174.90-2,721.42

Finding the Fourth Proportional to 10,117.24, 15,174.90 and 2,721.42

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Solution

The fourth proportional to 10,117.24, 15,174.90 and 2,721.42 is: 4,081.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,117.24 : 15,174.90 = 2,721.42 : x
  2. Step 2: Convert to fraction form
    10,117.24/15,174.90 = 2,721.42/x
  3. Step 3: Cross multiply
    10,117.24x = 15,174.90 × 2,721.42
  4. Step 4: Simplify right side
    10,117.24x = 41,297,276.36
  5. Step 5: Solve for x
    x = 41,297,276.36/10,117.24
  6. Step 6: Final answer
    x = 4,081.87

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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.