Home / 8,249.89-12,371.95-3,318.25

Finding the Fourth Proportional to 8,249.89, 12,371.95 and 3,318.25

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Solution

The fourth proportional to 8,249.89, 12,371.95 and 3,318.25 is: 4,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,249.89 : 12,371.95 = 3,318.25 : x
  2. Step 2: Convert to fraction form
    8,249.89/12,371.95 = 3,318.25/x
  3. Step 3: Cross multiply
    8,249.89x = 12,371.95 × 3,318.25
  4. Step 4: Simplify right side
    8,249.89x = 41,053,152.93
  5. Step 5: Solve for x
    x = 41,053,152.93/8,249.89
  6. Step 6: Final answer
    x = 4,976.21

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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.