Home / 11,519.91-17,281.26-4,125.15

Finding the Fourth Proportional to 11,519.91, 17,281.26 and 4,125.15

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Solution

The fourth proportional to 11,519.91, 17,281.26 and 4,125.15 is: 6,188.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,519.91 : 17,281.26 = 4,125.15 : x
  2. Step 2: Convert to fraction form
    11,519.91/17,281.26 = 4,125.15/x
  3. Step 3: Cross multiply
    11,519.91x = 17,281.26 × 4,125.15
  4. Step 4: Simplify right side
    11,519.91x = 71,287,789.69
  5. Step 5: Solve for x
    x = 71,287,789.69/11,519.91
  6. Step 6: Final answer
    x = 6,188.22

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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.