Home / 11,078.13-16,617.20-3,286.88

Finding the Fourth Proportional to 11,078.13, 16,617.20 and 3,286.88

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Solution

The fourth proportional to 11,078.13, 16,617.20 and 3,286.88 is: 4,930.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.13 : 16,617.20 = 3,286.88 : x
  2. Step 2: Convert to fraction form
    11,078.13/16,617.20 = 3,286.88/x
  3. Step 3: Cross multiply
    11,078.13x = 16,617.20 × 3,286.88
  4. Step 4: Simplify right side
    11,078.13x = 54,618,642.82
  5. Step 5: Solve for x
    x = 54,618,642.82/11,078.13
  6. Step 6: Final answer
    x = 4,930.31

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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.