Home / 8,146.26-11,221.20-6,819.48

Finding the Fourth Proportional to 8,146.26, 11,221.20 and 6,819.48

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Solution

The fourth proportional to 8,146.26, 11,221.20 and 6,819.48 is: 9,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.26 : 11,221.20 = 6,819.48 : x
  2. Step 2: Convert to fraction form
    8,146.26/11,221.20 = 6,819.48/x
  3. Step 3: Cross multiply
    8,146.26x = 11,221.20 × 6,819.48
  4. Step 4: Simplify right side
    8,146.26x = 76,522,748.98
  5. Step 5: Solve for x
    x = 76,522,748.98/8,146.26
  6. Step 6: Final answer
    x = 9,393.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.