Home / 8,163.14-12,243.33-3,164.78

Finding the Fourth Proportional to 8,163.14, 12,243.33 and 3,164.78

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Solution

The fourth proportional to 8,163.14, 12,243.33 and 3,164.78 is: 4,746.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.14 : 12,243.33 = 3,164.78 : x
  2. Step 2: Convert to fraction form
    8,163.14/12,243.33 = 3,164.78/x
  3. Step 3: Cross multiply
    8,163.14x = 12,243.33 × 3,164.78
  4. Step 4: Simplify right side
    8,163.14x = 38,747,445.92
  5. Step 5: Solve for x
    x = 38,747,445.92/8,163.14
  6. Step 6: Final answer
    x = 4,746.63

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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.