Home / 8,163.20-12,236.64-3,231.02

Finding the Fourth Proportional to 8,163.20, 12,236.64 and 3,231.02

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Solution

The fourth proportional to 8,163.20, 12,236.64 and 3,231.02 is: 4,843.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.20 : 12,236.64 = 3,231.02 : x
  2. Step 2: Convert to fraction form
    8,163.20/12,236.64 = 3,231.02/x
  3. Step 3: Cross multiply
    8,163.20x = 12,236.64 × 3,231.02
  4. Step 4: Simplify right side
    8,163.20x = 39,536,828.57
  5. Step 5: Solve for x
    x = 39,536,828.57/8,163.20
  6. Step 6: Final answer
    x = 4,843.30

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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.