Home / 11,279.67-16,922.43-3,381.86

Finding the Fourth Proportional to 11,279.67, 16,922.43 and 3,381.86

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Solution

The fourth proportional to 11,279.67, 16,922.43 and 3,381.86 is: 5,073.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.67 : 16,922.43 = 3,381.86 : x
  2. Step 2: Convert to fraction form
    11,279.67/16,922.43 = 3,381.86/x
  3. Step 3: Cross multiply
    11,279.67x = 16,922.43 × 3,381.86
  4. Step 4: Simplify right side
    11,279.67x = 57,229,272.21
  5. Step 5: Solve for x
    x = 57,229,272.21/11,279.67
  6. Step 6: Final answer
    x = 5,073.67

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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.