Home / 18,480.15-25,512.17-12,824.73

Finding the Fourth Proportional to 18,480.15, 25,512.17 and 12,824.73

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Solution

The fourth proportional to 18,480.15, 25,512.17 and 12,824.73 is: 17,704.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,480.15 : 25,512.17 = 12,824.73 : x
  2. Step 2: Convert to fraction form
    18,480.15/25,512.17 = 12,824.73/x
  3. Step 3: Cross multiply
    18,480.15x = 25,512.17 × 12,824.73
  4. Step 4: Simplify right side
    18,480.15x = 327,186,627.84
  5. Step 5: Solve for x
    x = 327,186,627.84/18,480.15
  6. Step 6: Final answer
    x = 17,704.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.