Home / 12,113.28-18,170.19-3,348.54

Finding the Fourth Proportional to 12,113.28, 18,170.19 and 3,348.54

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Solution

The fourth proportional to 12,113.28, 18,170.19 and 3,348.54 is: 5,022.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.28 : 18,170.19 = 3,348.54 : x
  2. Step 2: Convert to fraction form
    12,113.28/18,170.19 = 3,348.54/x
  3. Step 3: Cross multiply
    12,113.28x = 18,170.19 × 3,348.54
  4. Step 4: Simplify right side
    12,113.28x = 60,843,608.02
  5. Step 5: Solve for x
    x = 60,843,608.02/12,113.28
  6. Step 6: Final answer
    x = 5,022.88

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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.