Home / 13,350.82-20,027.18-3,990.73

Finding the Fourth Proportional to 13,350.82, 20,027.18 and 3,990.73

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Solution

The fourth proportional to 13,350.82, 20,027.18 and 3,990.73 is: 5,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.82 : 20,027.18 = 3,990.73 : x
  2. Step 2: Convert to fraction form
    13,350.82/20,027.18 = 3,990.73/x
  3. Step 3: Cross multiply
    13,350.82x = 20,027.18 × 3,990.73
  4. Step 4: Simplify right side
    13,350.82x = 79,923,068.04
  5. Step 5: Solve for x
    x = 79,923,068.04/13,350.82
  6. Step 6: Final answer
    x = 5,986.38

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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.