Home / 12,169.06-16,791.78-7,132.12

Finding the Fourth Proportional to 12,169.06, 16,791.78 and 7,132.12

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Solution

The fourth proportional to 12,169.06, 16,791.78 and 7,132.12 is: 9,841.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.06 : 16,791.78 = 7,132.12 : x
  2. Step 2: Convert to fraction form
    12,169.06/16,791.78 = 7,132.12/x
  3. Step 3: Cross multiply
    12,169.06x = 16,791.78 × 7,132.12
  4. Step 4: Simplify right side
    12,169.06x = 119,760,989.97
  5. Step 5: Solve for x
    x = 119,760,989.97/12,169.06
  6. Step 6: Final answer
    x = 9,841.43

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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.