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Finding the Fourth Proportional to 8,481.22, 12,700.07 and 5,550.98

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Solution

The fourth proportional to 8,481.22, 12,700.07 and 5,550.98 is: 8,312.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.22 : 12,700.07 = 5,550.98 : x
  2. Step 2: Convert to fraction form
    8,481.22/12,700.07 = 5,550.98/x
  3. Step 3: Cross multiply
    8,481.22x = 12,700.07 × 5,550.98
  4. Step 4: Simplify right side
    8,481.22x = 70,497,834.57
  5. Step 5: Solve for x
    x = 70,497,834.57/8,481.22
  6. Step 6: Final answer
    x = 8,312.23

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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.