Home / 12,146.88-18,220.31-3,382.02

Finding the Fourth Proportional to 12,146.88, 18,220.31 and 3,382.02

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Solution

The fourth proportional to 12,146.88, 18,220.31 and 3,382.02 is: 5,073.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,146.88 : 18,220.31 = 3,382.02 : x
  2. Step 2: Convert to fraction form
    12,146.88/18,220.31 = 3,382.02/x
  3. Step 3: Cross multiply
    12,146.88x = 18,220.31 × 3,382.02
  4. Step 4: Simplify right side
    12,146.88x = 61,621,452.83
  5. Step 5: Solve for x
    x = 61,621,452.83/12,146.88
  6. Step 6: Final answer
    x = 5,073.03

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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.