Home / 12,172.97-18,262.17-3,853.46

Finding the Fourth Proportional to 12,172.97, 18,262.17 and 3,853.46

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Solution

The fourth proportional to 12,172.97, 18,262.17 and 3,853.46 is: 5,781.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.97 : 18,262.17 = 3,853.46 : x
  2. Step 2: Convert to fraction form
    12,172.97/18,262.17 = 3,853.46/x
  3. Step 3: Cross multiply
    12,172.97x = 18,262.17 × 3,853.46
  4. Step 4: Simplify right side
    12,172.97x = 70,372,450.30
  5. Step 5: Solve for x
    x = 70,372,450.30/12,172.97
  6. Step 6: Final answer
    x = 5,781.04

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1.5x scale

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.