Home / 13,519.44-20,286.45-6,943.86

Finding the Fourth Proportional to 13,519.44, 20,286.45 and 6,943.86

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Solution

The fourth proportional to 13,519.44, 20,286.45 and 6,943.86 is: 10,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.44 : 20,286.45 = 6,943.86 : x
  2. Step 2: Convert to fraction form
    13,519.44/20,286.45 = 6,943.86/x
  3. Step 3: Cross multiply
    13,519.44x = 20,286.45 × 6,943.86
  4. Step 4: Simplify right side
    13,519.44x = 140,866,268.70
  5. Step 5: Solve for x
    x = 140,866,268.70/13,519.44
  6. Step 6: Final answer
    x = 10,419.53

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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.