Home / 8,162.18-12,243.39-2,318.79

Finding the Fourth Proportional to 8,162.18, 12,243.39 and 2,318.79

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Solution

The fourth proportional to 8,162.18, 12,243.39 and 2,318.79 is: 3,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.18 : 12,243.39 = 2,318.79 : x
  2. Step 2: Convert to fraction form
    8,162.18/12,243.39 = 2,318.79/x
  3. Step 3: Cross multiply
    8,162.18x = 12,243.39 × 2,318.79
  4. Step 4: Simplify right side
    8,162.18x = 28,389,850.30
  5. Step 5: Solve for x
    x = 28,389,850.30/8,162.18
  6. Step 6: Final answer
    x = 3,478.22

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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.