Home / 12,715.92-19,076.22-3,948.75

Finding the Fourth Proportional to 12,715.92, 19,076.22 and 3,948.75

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Solution

The fourth proportional to 12,715.92, 19,076.22 and 3,948.75 is: 5,923.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.92 : 19,076.22 = 3,948.75 : x
  2. Step 2: Convert to fraction form
    12,715.92/19,076.22 = 3,948.75/x
  3. Step 3: Cross multiply
    12,715.92x = 19,076.22 × 3,948.75
  4. Step 4: Simplify right side
    12,715.92x = 75,327,223.73
  5. Step 5: Solve for x
    x = 75,327,223.73/12,715.92
  6. Step 6: Final answer
    x = 5,923.85

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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.