Home / 13,287.24-19,934.13-3,927.21

Finding the Fourth Proportional to 13,287.24, 19,934.13 and 3,927.21

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Solution

The fourth proportional to 13,287.24, 19,934.13 and 3,927.21 is: 5,891.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.24 : 19,934.13 = 3,927.21 : x
  2. Step 2: Convert to fraction form
    13,287.24/19,934.13 = 3,927.21/x
  3. Step 3: Cross multiply
    13,287.24x = 19,934.13 × 3,927.21
  4. Step 4: Simplify right side
    13,287.24x = 78,285,514.68
  5. Step 5: Solve for x
    x = 78,285,514.68/13,287.24
  6. Step 6: Final answer
    x = 5,891.78

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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.