Home / 11,966.35-17,940.57-8,257.99

Finding the Fourth Proportional to 11,966.35, 17,940.57 and 8,257.99

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Solution

The fourth proportional to 11,966.35, 17,940.57 and 8,257.99 is: 12,380.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.35 : 17,940.57 = 8,257.99 : x
  2. Step 2: Convert to fraction form
    11,966.35/17,940.57 = 8,257.99/x
  3. Step 3: Cross multiply
    11,966.35x = 17,940.57 × 8,257.99
  4. Step 4: Simplify right side
    11,966.35x = 148,153,047.65
  5. Step 5: Solve for x
    x = 148,153,047.65/11,966.35
  6. Step 6: Final answer
    x = 12,380.81

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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.