Home / 12,120.41-16,793.66-11,857.97

Finding the Fourth Proportional to 12,120.41, 16,793.66 and 11,857.97

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Solution

The fourth proportional to 12,120.41, 16,793.66 and 11,857.97 is: 16,430.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,120.41 : 16,793.66 = 11,857.97 : x
  2. Step 2: Convert to fraction form
    12,120.41/16,793.66 = 11,857.97/x
  3. Step 3: Cross multiply
    12,120.41x = 16,793.66 × 11,857.97
  4. Step 4: Simplify right side
    12,120.41x = 199,138,716.47
  5. Step 5: Solve for x
    x = 199,138,716.47/12,120.41
  6. Step 6: Final answer
    x = 16,430.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.