Home / 11,996.81-16,555.62-6,691.97

Finding the Fourth Proportional to 11,996.81, 16,555.62 and 6,691.97

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Solution

The fourth proportional to 11,996.81, 16,555.62 and 6,691.97 is: 9,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.81 : 16,555.62 = 6,691.97 : x
  2. Step 2: Convert to fraction form
    11,996.81/16,555.62 = 6,691.97/x
  3. Step 3: Cross multiply
    11,996.81x = 16,555.62 × 6,691.97
  4. Step 4: Simplify right side
    11,996.81x = 110,789,629.59
  5. Step 5: Solve for x
    x = 110,789,629.59/11,996.81
  6. Step 6: Final answer
    x = 9,234.93

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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.