Home / 11,326.11-16,992.09-3,428.66

Finding the Fourth Proportional to 11,326.11, 16,992.09 and 3,428.66

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Solution

The fourth proportional to 11,326.11, 16,992.09 and 3,428.66 is: 5,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,326.11 : 16,992.09 = 3,428.66 : x
  2. Step 2: Convert to fraction form
    11,326.11/16,992.09 = 3,428.66/x
  3. Step 3: Cross multiply
    11,326.11x = 16,992.09 × 3,428.66
  4. Step 4: Simplify right side
    11,326.11x = 58,260,014.34
  5. Step 5: Solve for x
    x = 58,260,014.34/11,326.11
  6. Step 6: Final answer
    x = 5,143.87

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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.