Home / 11,279.88-16,910.10-5,440.59

Finding the Fourth Proportional to 11,279.88, 16,910.10 and 5,440.59

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Solution

The fourth proportional to 11,279.88, 16,910.10 and 5,440.59 is: 8,156.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.88 : 16,910.10 = 5,440.59 : x
  2. Step 2: Convert to fraction form
    11,279.88/16,910.10 = 5,440.59/x
  3. Step 3: Cross multiply
    11,279.88x = 16,910.10 × 5,440.59
  4. Step 4: Simplify right side
    11,279.88x = 92,000,920.96
  5. Step 5: Solve for x
    x = 92,000,920.96/11,279.88
  6. Step 6: Final answer
    x = 8,156.20

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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.