Home / 8,261.92-12,394.68-3,331.72

Finding the Fourth Proportional to 8,261.92, 12,394.68 and 3,331.72

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Solution

The fourth proportional to 8,261.92, 12,394.68 and 3,331.72 is: 4,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.92 : 12,394.68 = 3,331.72 : x
  2. Step 2: Convert to fraction form
    8,261.92/12,394.68 = 3,331.72/x
  3. Step 3: Cross multiply
    8,261.92x = 12,394.68 × 3,331.72
  4. Step 4: Simplify right side
    8,261.92x = 41,295,603.25
  5. Step 5: Solve for x
    x = 41,295,603.25/8,261.92
  6. Step 6: Final answer
    x = 4,998.31

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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.