Home / 11,081.38-16,622.07-8,774.50

Finding the Fourth Proportional to 11,081.38, 16,622.07 and 8,774.50

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Solution

The fourth proportional to 11,081.38, 16,622.07 and 8,774.50 is: 13,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,081.38 : 16,622.07 = 8,774.50 : x
  2. Step 2: Convert to fraction form
    11,081.38/16,622.07 = 8,774.50/x
  3. Step 3: Cross multiply
    11,081.38x = 16,622.07 × 8,774.50
  4. Step 4: Simplify right side
    11,081.38x = 145,850,353.22
  5. Step 5: Solve for x
    x = 145,850,353.22/11,081.38
  6. Step 6: Final answer
    x = 13,161.75

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Half scale
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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.