Home / 13,305.68-19,962.42-3,945.96

Finding the Fourth Proportional to 13,305.68, 19,962.42 and 3,945.96

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Solution

The fourth proportional to 13,305.68, 19,962.42 and 3,945.96 is: 5,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.68 : 19,962.42 = 3,945.96 : x
  2. Step 2: Convert to fraction form
    13,305.68/19,962.42 = 3,945.96/x
  3. Step 3: Cross multiply
    13,305.68x = 19,962.42 × 3,945.96
  4. Step 4: Simplify right side
    13,305.68x = 78,770,910.82
  5. Step 5: Solve for x
    x = 78,770,910.82/13,305.68
  6. Step 6: Final answer
    x = 5,920.10

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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.