Home / 8,272.80-12,406.56-2,724.88

Finding the Fourth Proportional to 8,272.80, 12,406.56 and 2,724.88

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Solution

The fourth proportional to 8,272.80, 12,406.56 and 2,724.88 is: 4,086.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.80 : 12,406.56 = 2,724.88 : x
  2. Step 2: Convert to fraction form
    8,272.80/12,406.56 = 2,724.88/x
  3. Step 3: Cross multiply
    8,272.80x = 12,406.56 × 2,724.88
  4. Step 4: Simplify right side
    8,272.80x = 33,806,387.21
  5. Step 5: Solve for x
    x = 33,806,387.21/8,272.80
  6. Step 6: Final answer
    x = 4,086.45

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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.