Home / 11,821.27-17,731.92-11,099.56

Finding the Fourth Proportional to 11,821.27, 17,731.92 and 11,099.56

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Solution

The fourth proportional to 11,821.27, 17,731.92 and 11,099.56 is: 16,649.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.27 : 17,731.92 = 11,099.56 : x
  2. Step 2: Convert to fraction form
    11,821.27/17,731.92 = 11,099.56/x
  3. Step 3: Cross multiply
    11,821.27x = 17,731.92 × 11,099.56
  4. Step 4: Simplify right side
    11,821.27x = 196,816,509.96
  5. Step 5: Solve for x
    x = 196,816,509.96/11,821.27
  6. Step 6: Final answer
    x = 16,649.35

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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.