Home / 13,842.13-20,766.75-3,982.18

Finding the Fourth Proportional to 13,842.13, 20,766.75 and 3,982.18

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Solution

The fourth proportional to 13,842.13, 20,766.75 and 3,982.18 is: 5,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.13 : 20,766.75 = 3,982.18 : x
  2. Step 2: Convert to fraction form
    13,842.13/20,766.75 = 3,982.18/x
  3. Step 3: Cross multiply
    13,842.13x = 20,766.75 × 3,982.18
  4. Step 4: Simplify right side
    13,842.13x = 82,696,936.52
  5. Step 5: Solve for x
    x = 82,696,936.52/13,842.13
  6. Step 6: Final answer
    x = 5,974.29

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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.