Home / 8,149.82-12,227.36-3,216.71

Finding the Fourth Proportional to 8,149.82, 12,227.36 and 3,216.71

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Solution

The fourth proportional to 8,149.82, 12,227.36 and 3,216.71 is: 4,826.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149.82 : 12,227.36 = 3,216.71 : x
  2. Step 2: Convert to fraction form
    8,149.82/12,227.36 = 3,216.71/x
  3. Step 3: Cross multiply
    8,149.82x = 12,227.36 × 3,216.71
  4. Step 4: Simplify right side
    8,149.82x = 39,331,885.67
  5. Step 5: Solve for x
    x = 39,331,885.67/8,149.82
  6. Step 6: Final answer
    x = 4,826.11

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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.