Home / 13,318.92-19,974.60-3,958.56

Finding the Fourth Proportional to 13,318.92, 19,974.60 and 3,958.56

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Solution

The fourth proportional to 13,318.92, 19,974.60 and 3,958.56 is: 5,936.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.92 : 19,974.60 = 3,958.56 : x
  2. Step 2: Convert to fraction form
    13,318.92/19,974.60 = 3,958.56/x
  3. Step 3: Cross multiply
    13,318.92x = 19,974.60 × 3,958.56
  4. Step 4: Simplify right side
    13,318.92x = 79,070,652.58
  5. Step 5: Solve for x
    x = 79,070,652.58/13,318.92
  6. Step 6: Final answer
    x = 5,936.72

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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.