Home / 8,231.18-12,341.78-3,227.56

Finding the Fourth Proportional to 8,231.18, 12,341.78 and 3,227.56

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Solution

The fourth proportional to 8,231.18, 12,341.78 and 3,227.56 is: 4,839.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.18 : 12,341.78 = 3,227.56 : x
  2. Step 2: Convert to fraction form
    8,231.18/12,341.78 = 3,227.56/x
  3. Step 3: Cross multiply
    8,231.18x = 12,341.78 × 3,227.56
  4. Step 4: Simplify right side
    8,231.18x = 39,833,856.23
  5. Step 5: Solve for x
    x = 39,833,856.23/8,231.18
  6. Step 6: Final answer
    x = 4,839.38

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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.