Home / 8,149.28-12,222.65-3,150.95

Finding the Fourth Proportional to 8,149.28, 12,222.65 and 3,150.95

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Solution

The fourth proportional to 8,149.28, 12,222.65 and 3,150.95 is: 4,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.28 : 12,222.65 = 3,150.95 : x
  2. Step 2: Convert to fraction form
    8,149.28/12,222.65 = 3,150.95/x
  3. Step 3: Cross multiply
    8,149.28x = 12,222.65 × 3,150.95
  4. Step 4: Simplify right side
    8,149.28x = 38,512,905.78
  5. Step 5: Solve for x
    x = 38,512,905.78/8,149.28
  6. Step 6: Final answer
    x = 4,725.93

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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.