Home / 13,843.12-20,768.14-3,982.38

Finding the Fourth Proportional to 13,843.12, 20,768.14 and 3,982.38

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Solution

The fourth proportional to 13,843.12, 20,768.14 and 3,982.38 is: 5,974.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.12 : 20,768.14 = 3,982.38 : x
  2. Step 2: Convert to fraction form
    13,843.12/20,768.14 = 3,982.38/x
  3. Step 3: Cross multiply
    13,843.12x = 20,768.14 × 3,982.38
  4. Step 4: Simplify right side
    13,843.12x = 82,706,625.37
  5. Step 5: Solve for x
    x = 82,706,625.37/13,843.12
  6. Step 6: Final answer
    x = 5,974.57

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1.5x scale

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.