Home / 13,947.92-20,917.17-5,061.40

Finding the Fourth Proportional to 13,947.92, 20,917.17 and 5,061.40

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Solution

The fourth proportional to 13,947.92, 20,917.17 and 5,061.40 is: 7,590.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.92 : 20,917.17 = 5,061.40 : x
  2. Step 2: Convert to fraction form
    13,947.92/20,917.17 = 5,061.40/x
  3. Step 3: Cross multiply
    13,947.92x = 20,917.17 × 5,061.40
  4. Step 4: Simplify right side
    13,947.92x = 105,870,096.53
  5. Step 5: Solve for x
    x = 105,870,096.53/13,947.92
  6. Step 6: Final answer
    x = 7,590.39

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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.