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Finding the Fourth Proportional to 8,119.52, 12,179.24 and 1,963.52

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Solution

The fourth proportional to 8,119.52, 12,179.24 and 1,963.52 is: 2,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.52 : 12,179.24 = 1,963.52 : x
  2. Step 2: Convert to fraction form
    8,119.52/12,179.24 = 1,963.52/x
  3. Step 3: Cross multiply
    8,119.52x = 12,179.24 × 1,963.52
  4. Step 4: Simplify right side
    8,119.52x = 23,914,181.32
  5. Step 5: Solve for x
    x = 23,914,181.32/8,119.52
  6. Step 6: Final answer
    x = 2,945.27

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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.