Home / 12,113.88-18,170.94-3,793.56

Finding the Fourth Proportional to 12,113.88, 18,170.94 and 3,793.56

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Solution

The fourth proportional to 12,113.88, 18,170.94 and 3,793.56 is: 5,690.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.88 : 18,170.94 = 3,793.56 : x
  2. Step 2: Convert to fraction form
    12,113.88/18,170.94 = 3,793.56/x
  3. Step 3: Cross multiply
    12,113.88x = 18,170.94 × 3,793.56
  4. Step 4: Simplify right side
    12,113.88x = 68,932,551.15
  5. Step 5: Solve for x
    x = 68,932,551.15/12,113.88
  6. Step 6: Final answer
    x = 5,690.38

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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.