Home / 16,982.78-25,441.02-11,121.62

Finding the Fourth Proportional to 16,982.78, 25,441.02 and 11,121.62

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Solution

The fourth proportional to 16,982.78, 25,441.02 and 11,121.62 is: 16,660.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.78 : 25,441.02 = 11,121.62 : x
  2. Step 2: Convert to fraction form
    16,982.78/25,441.02 = 11,121.62/x
  3. Step 3: Cross multiply
    16,982.78x = 25,441.02 × 11,121.62
  4. Step 4: Simplify right side
    16,982.78x = 282,945,229.65
  5. Step 5: Solve for x
    x = 282,945,229.65/16,982.78
  6. Step 6: Final answer
    x = 16,660.72

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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.