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Finding the Fourth Proportional to 8,100.48, 12,151.68 and 2,628.48

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Solution

The fourth proportional to 8,100.48, 12,151.68 and 2,628.48 is: 3,943.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.48 : 12,151.68 = 2,628.48 : x
  2. Step 2: Convert to fraction form
    8,100.48/12,151.68 = 2,628.48/x
  3. Step 3: Cross multiply
    8,100.48x = 12,151.68 × 2,628.48
  4. Step 4: Simplify right side
    8,100.48x = 31,940,447.85
  5. Step 5: Solve for x
    x = 31,940,447.85/8,100.48
  6. Step 6: Final answer
    x = 3,943.03

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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.