Home / 18,489.14-27,729.63-5,338.65

Finding the Fourth Proportional to 18,489.14, 27,729.63 and 5,338.65

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Solution

The fourth proportional to 18,489.14, 27,729.63 and 5,338.65 is: 8,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,489.14 : 27,729.63 = 5,338.65 : x
  2. Step 2: Convert to fraction form
    18,489.14/27,729.63 = 5,338.65/x
  3. Step 3: Cross multiply
    18,489.14x = 27,729.63 × 5,338.65
  4. Step 4: Simplify right side
    18,489.14x = 148,038,789.20
  5. Step 5: Solve for x
    x = 148,038,789.20/18,489.14
  6. Step 6: Final answer
    x = 8,006.80

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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.