Home / 11,008.09-16,511.91-2,687.86

Finding the Fourth Proportional to 11,008.09, 16,511.91 and 2,687.86

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Solution

The fourth proportional to 11,008.09, 16,511.91 and 2,687.86 is: 4,031.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.09 : 16,511.91 = 2,687.86 : x
  2. Step 2: Convert to fraction form
    11,008.09/16,511.91 = 2,687.86/x
  3. Step 3: Cross multiply
    11,008.09x = 16,511.91 × 2,687.86
  4. Step 4: Simplify right side
    11,008.09x = 44,381,619.85
  5. Step 5: Solve for x
    x = 44,381,619.85/11,008.09
  6. Step 6: Final answer
    x = 4,031.73

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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.