Home / 12,160.22-18,243.57-3,840.44

Finding the Fourth Proportional to 12,160.22, 18,243.57 and 3,840.44

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Solution

The fourth proportional to 12,160.22, 18,243.57 and 3,840.44 is: 5,761.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,160.22 : 18,243.57 = 3,840.44 : x
  2. Step 2: Convert to fraction form
    12,160.22/18,243.57 = 3,840.44/x
  3. Step 3: Cross multiply
    12,160.22x = 18,243.57 × 3,840.44
  4. Step 4: Simplify right side
    12,160.22x = 70,063,335.97
  5. Step 5: Solve for x
    x = 70,063,335.97/12,160.22
  6. Step 6: Final answer
    x = 5,761.68

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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.