Home / 13,825.24-20,726.40-5,387.56

Finding the Fourth Proportional to 13,825.24, 20,726.40 and 5,387.56

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Solution

The fourth proportional to 13,825.24, 20,726.40 and 5,387.56 is: 8,076.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.24 : 20,726.40 = 5,387.56 : x
  2. Step 2: Convert to fraction form
    13,825.24/20,726.40 = 5,387.56/x
  3. Step 3: Cross multiply
    13,825.24x = 20,726.40 × 5,387.56
  4. Step 4: Simplify right side
    13,825.24x = 111,664,723.58
  5. Step 5: Solve for x
    x = 111,664,723.58/13,825.24
  6. Step 6: Final answer
    x = 8,076.87

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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.