Home / 18,234.30-27,351.45-5,086.65

Finding the Fourth Proportional to 18,234.30, 27,351.45 and 5,086.65

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Solution

The fourth proportional to 18,234.30, 27,351.45 and 5,086.65 is: 7,629.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,234.30 : 27,351.45 = 5,086.65 : x
  2. Step 2: Convert to fraction form
    18,234.30/27,351.45 = 5,086.65/x
  3. Step 3: Cross multiply
    18,234.30x = 27,351.45 × 5,086.65
  4. Step 4: Simplify right side
    18,234.30x = 139,127,253.14
  5. Step 5: Solve for x
    x = 139,127,253.14/18,234.30
  6. Step 6: Final answer
    x = 7,629.98

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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.