Home / 18,299.18-27,449.82-5,152.61

Finding the Fourth Proportional to 18,299.18, 27,449.82 and 5,152.61

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Solution

The fourth proportional to 18,299.18, 27,449.82 and 5,152.61 is: 7,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.18 : 27,449.82 = 5,152.61 : x
  2. Step 2: Convert to fraction form
    18,299.18/27,449.82 = 5,152.61/x
  3. Step 3: Cross multiply
    18,299.18x = 27,449.82 × 5,152.61
  4. Step 4: Simplify right side
    18,299.18x = 141,438,285.65
  5. Step 5: Solve for x
    x = 141,438,285.65/18,299.18
  6. Step 6: Final answer
    x = 7,729.21

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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.