Home / 12,314.43-18,474.23-3,993.79

Finding the Fourth Proportional to 12,314.43, 18,474.23 and 3,993.79

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Solution

The fourth proportional to 12,314.43, 18,474.23 and 3,993.79 is: 5,991.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314.43 : 18,474.23 = 3,993.79 : x
  2. Step 2: Convert to fraction form
    12,314.43/18,474.23 = 3,993.79/x
  3. Step 3: Cross multiply
    12,314.43x = 18,474.23 × 3,993.79
  4. Step 4: Simplify right side
    12,314.43x = 73,782,251.20
  5. Step 5: Solve for x
    x = 73,782,251.20/12,314.43
  6. Step 6: Final answer
    x = 5,991.53

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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.