Home / 12,105.09-16,680.47-8,741.97

Finding the Fourth Proportional to 12,105.09, 16,680.47 and 8,741.97

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Solution

The fourth proportional to 12,105.09, 16,680.47 and 8,741.97 is: 12,046.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.09 : 16,680.47 = 8,741.97 : x
  2. Step 2: Convert to fraction form
    12,105.09/16,680.47 = 8,741.97/x
  3. Step 3: Cross multiply
    12,105.09x = 16,680.47 × 8,741.97
  4. Step 4: Simplify right side
    12,105.09x = 145,820,124.62
  5. Step 5: Solve for x
    x = 145,820,124.62/12,105.09
  6. Step 6: Final answer
    x = 12,046.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.