Home / 13,974.38-20,961.57-4,113.75

Finding the Fourth Proportional to 13,974.38, 20,961.57 and 4,113.75

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Solution

The fourth proportional to 13,974.38, 20,961.57 and 4,113.75 is: 6,170.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.38 : 20,961.57 = 4,113.75 : x
  2. Step 2: Convert to fraction form
    13,974.38/20,961.57 = 4,113.75/x
  3. Step 3: Cross multiply
    13,974.38x = 20,961.57 × 4,113.75
  4. Step 4: Simplify right side
    13,974.38x = 86,230,658.59
  5. Step 5: Solve for x
    x = 86,230,658.59/13,974.38
  6. Step 6: Final answer
    x = 6,170.63

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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.