Home / 11,078.30-16,617.45-3,287.11

Finding the Fourth Proportional to 11,078.30, 16,617.45 and 3,287.11

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Solution

The fourth proportional to 11,078.30, 16,617.45 and 3,287.11 is: 4,930.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.30 : 16,617.45 = 3,287.11 : x
  2. Step 2: Convert to fraction form
    11,078.30/16,617.45 = 3,287.11/x
  3. Step 3: Cross multiply
    11,078.30x = 16,617.45 × 3,287.11
  4. Step 4: Simplify right side
    11,078.30x = 54,623,360.28
  5. Step 5: Solve for x
    x = 54,623,360.28/11,078.30
  6. Step 6: Final answer
    x = 4,930.66

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Double scale
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Similar ratio
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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.