Home / 18,220.38-27,330.60-5,072.75

Finding the Fourth Proportional to 18,220.38, 27,330.60 and 5,072.75

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Solution

The fourth proportional to 18,220.38, 27,330.60 and 5,072.75 is: 7,609.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,220.38 : 27,330.60 = 5,072.75 : x
  2. Step 2: Convert to fraction form
    18,220.38/27,330.60 = 5,072.75/x
  3. Step 3: Cross multiply
    18,220.38x = 27,330.60 × 5,072.75
  4. Step 4: Simplify right side
    18,220.38x = 138,641,164.50
  5. Step 5: Solve for x
    x = 138,641,164.50/18,220.38
  6. Step 6: Final answer
    x = 7,609.13

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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.