Home / 18,610.25-27,912.42-5,459.54

Finding the Fourth Proportional to 18,610.25, 27,912.42 and 5,459.54

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Solution

The fourth proportional to 18,610.25, 27,912.42 and 5,459.54 is: 8,188.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,610.25 : 27,912.42 = 5,459.54 : x
  2. Step 2: Convert to fraction form
    18,610.25/27,912.42 = 5,459.54/x
  3. Step 3: Cross multiply
    18,610.25x = 27,912.42 × 5,459.54
  4. Step 4: Simplify right side
    18,610.25x = 152,388,833.92
  5. Step 5: Solve for x
    x = 152,388,833.92/18,610.25
  6. Step 6: Final answer
    x = 8,188.44

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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.