Home / 8,259.43-12,390.54-2,711.20

Finding the Fourth Proportional to 8,259.43, 12,390.54 and 2,711.20

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Solution

The fourth proportional to 8,259.43, 12,390.54 and 2,711.20 is: 4,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.43 : 12,390.54 = 2,711.20 : x
  2. Step 2: Convert to fraction form
    8,259.43/12,390.54 = 2,711.20/x
  3. Step 3: Cross multiply
    8,259.43x = 12,390.54 × 2,711.20
  4. Step 4: Simplify right side
    8,259.43x = 33,593,232.05
  5. Step 5: Solve for x
    x = 33,593,232.05/8,259.43
  6. Step 6: Final answer
    x = 4,067.26

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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.