Home / 13,474.87-20,221.55-4,709.79

Finding the Fourth Proportional to 13,474.87, 20,221.55 and 4,709.79

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Solution

The fourth proportional to 13,474.87, 20,221.55 and 4,709.79 is: 7,067.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,474.87 : 20,221.55 = 4,709.79 : x
  2. Step 2: Convert to fraction form
    13,474.87/20,221.55 = 4,709.79/x
  3. Step 3: Cross multiply
    13,474.87x = 20,221.55 × 4,709.79
  4. Step 4: Simplify right side
    13,474.87x = 95,239,253.97
  5. Step 5: Solve for x
    x = 95,239,253.97/13,474.87
  6. Step 6: Final answer
    x = 7,067.92

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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.