Home / 11,102.66-16,660.28-4,081.76

Finding the Fourth Proportional to 11,102.66, 16,660.28 and 4,081.76

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Solution

The fourth proportional to 11,102.66, 16,660.28 and 4,081.76 is: 6,124.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.66 : 16,660.28 = 4,081.76 : x
  2. Step 2: Convert to fraction form
    11,102.66/16,660.28 = 4,081.76/x
  3. Step 3: Cross multiply
    11,102.66x = 16,660.28 × 4,081.76
  4. Step 4: Simplify right side
    11,102.66x = 68,003,191.40
  5. Step 5: Solve for x
    x = 68,003,191.40/11,102.66
  6. Step 6: Final answer
    x = 6,124.95

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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.