Home / 8,100.25-12,150.38-2,906.13

Finding the Fourth Proportional to 8,100.25, 12,150.38 and 2,906.13

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Solution

The fourth proportional to 8,100.25, 12,150.38 and 2,906.13 is: 4,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,100.25 : 12,150.38 = 2,906.13 : x
  2. Step 2: Convert to fraction form
    8,100.25/12,150.38 = 2,906.13/x
  3. Step 3: Cross multiply
    8,100.25x = 12,150.38 × 2,906.13
  4. Step 4: Simplify right side
    8,100.25x = 35,310,583.83
  5. Step 5: Solve for x
    x = 35,310,583.83/8,100.25
  6. Step 6: Final answer
    x = 4,359.20

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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.