Home / 11,940.22-17,908.90-3,175.80

Finding the Fourth Proportional to 11,940.22, 17,908.90 and 3,175.80

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Solution

The fourth proportional to 11,940.22, 17,908.90 and 3,175.80 is: 4,763.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,940.22 : 17,908.90 = 3,175.80 : x
  2. Step 2: Convert to fraction form
    11,940.22/17,908.90 = 3,175.80/x
  3. Step 3: Cross multiply
    11,940.22x = 17,908.90 × 3,175.80
  4. Step 4: Simplify right side
    11,940.22x = 56,875,084.62
  5. Step 5: Solve for x
    x = 56,875,084.62/11,940.22
  6. Step 6: Final answer
    x = 4,763.32

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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.