Home / 8,455.92-12,682.68-3,261.78

Finding the Fourth Proportional to 8,455.92, 12,682.68 and 3,261.78

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Solution

The fourth proportional to 8,455.92, 12,682.68 and 3,261.78 is: 4,892.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.92 : 12,682.68 = 3,261.78 : x
  2. Step 2: Convert to fraction form
    8,455.92/12,682.68 = 3,261.78/x
  3. Step 3: Cross multiply
    8,455.92x = 12,682.68 × 3,261.78
  4. Step 4: Simplify right side
    8,455.92x = 41,368,111.97
  5. Step 5: Solve for x
    x = 41,368,111.97/8,455.92
  6. Step 6: Final answer
    x = 4,892.21

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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.