Home / 18,212.10-27,306.90-7,105.83

Finding the Fourth Proportional to 18,212.10, 27,306.90 and 7,105.83

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Solution

The fourth proportional to 18,212.10, 27,306.90 and 7,105.83 is: 10,654.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.10 : 27,306.90 = 7,105.83 : x
  2. Step 2: Convert to fraction form
    18,212.10/27,306.90 = 7,105.83/x
  3. Step 3: Cross multiply
    18,212.10x = 27,306.90 × 7,105.83
  4. Step 4: Simplify right side
    18,212.10x = 194,038,189.23
  5. Step 5: Solve for x
    x = 194,038,189.23/18,212.10
  6. Step 6: Final answer
    x = 10,654.36

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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.