Home / 13,819.45-20,729.08-3,958.73

Finding the Fourth Proportional to 13,819.45, 20,729.08 and 3,958.73

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Solution

The fourth proportional to 13,819.45, 20,729.08 and 3,958.73 is: 5,938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,819.45 : 20,729.08 = 3,958.73 : x
  2. Step 2: Convert to fraction form
    13,819.45/20,729.08 = 3,958.73/x
  3. Step 3: Cross multiply
    13,819.45x = 20,729.08 × 3,958.73
  4. Step 4: Simplify right side
    13,819.45x = 82,060,830.87
  5. Step 5: Solve for x
    x = 82,060,830.87/13,819.45
  6. Step 6: Final answer
    x = 5,938.07

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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.