Home / 13,471.23-20,198.92-5,151.86

Finding the Fourth Proportional to 13,471.23, 20,198.92 and 5,151.86

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Solution

The fourth proportional to 13,471.23, 20,198.92 and 5,151.86 is: 7,724.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.23 : 20,198.92 = 5,151.86 : x
  2. Step 2: Convert to fraction form
    13,471.23/20,198.92 = 5,151.86/x
  3. Step 3: Cross multiply
    13,471.23x = 20,198.92 × 5,151.86
  4. Step 4: Simplify right side
    13,471.23x = 104,062,007.99
  5. Step 5: Solve for x
    x = 104,062,007.99/13,471.23
  6. Step 6: Final answer
    x = 7,724.76

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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.