Home / 11,279.80-16,906.20-4,702.60

Finding the Fourth Proportional to 11,279.80, 16,906.20 and 4,702.60

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Solution

The fourth proportional to 11,279.80, 16,906.20 and 4,702.60 is: 7,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.80 : 16,906.20 = 4,702.60 : x
  2. Step 2: Convert to fraction form
    11,279.80/16,906.20 = 4,702.60/x
  3. Step 3: Cross multiply
    11,279.80x = 16,906.20 × 4,702.60
  4. Step 4: Simplify right side
    11,279.80x = 79,503,096.12
  5. Step 5: Solve for x
    x = 79,503,096.12/11,279.80
  6. Step 6: Final answer
    x = 7,048.27

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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.