Home / 11,996.77-16,555.61-6,691.81

Finding the Fourth Proportional to 11,996.77, 16,555.61 and 6,691.81

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Solution

The fourth proportional to 11,996.77, 16,555.61 and 6,691.81 is: 9,234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.77 : 16,555.61 = 6,691.81 : x
  2. Step 2: Convert to fraction form
    11,996.77/16,555.61 = 6,691.81/x
  3. Step 3: Cross multiply
    11,996.77x = 16,555.61 × 6,691.81
  4. Step 4: Simplify right side
    11,996.77x = 110,786,996.55
  5. Step 5: Solve for x
    x = 110,786,996.55/11,996.77
  6. Step 6: Final answer
    x = 9,234.74

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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.