Home / 8,103.32-12,154.56-3,173.85

Finding the Fourth Proportional to 8,103.32, 12,154.56 and 3,173.85

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Solution

The fourth proportional to 8,103.32, 12,154.56 and 3,173.85 is: 4,760.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,103.32 : 12,154.56 = 3,173.85 : x
  2. Step 2: Convert to fraction form
    8,103.32/12,154.56 = 3,173.85/x
  3. Step 3: Cross multiply
    8,103.32x = 12,154.56 × 3,173.85
  4. Step 4: Simplify right side
    8,103.32x = 38,576,750.26
  5. Step 5: Solve for x
    x = 38,576,750.26/8,103.32
  6. Step 6: Final answer
    x = 4,760.61

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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.