Home / 11,996.76-18,006.66-11,242.20

Finding the Fourth Proportional to 11,996.76, 18,006.66 and 11,242.20

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Solution

The fourth proportional to 11,996.76, 18,006.66 and 11,242.20 is: 16,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,996.76 : 18,006.66 = 11,242.20 : x
  2. Step 2: Convert to fraction form
    11,996.76/18,006.66 = 11,242.20/x
  3. Step 3: Cross multiply
    11,996.76x = 18,006.66 × 11,242.20
  4. Step 4: Simplify right side
    11,996.76x = 202,434,473.05
  5. Step 5: Solve for x
    x = 202,434,473.05/11,996.76
  6. Step 6: Final answer
    x = 16,874.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.