Home / 8,286.44-12,428.28-2,739.56

Finding the Fourth Proportional to 8,286.44, 12,428.28 and 2,739.56

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Solution

The fourth proportional to 8,286.44, 12,428.28 and 2,739.56 is: 4,108.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,286.44 : 12,428.28 = 2,739.56 : x
  2. Step 2: Convert to fraction form
    8,286.44/12,428.28 = 2,739.56/x
  3. Step 3: Cross multiply
    8,286.44x = 12,428.28 × 2,739.56
  4. Step 4: Simplify right side
    8,286.44x = 34,048,018.76
  5. Step 5: Solve for x
    x = 34,048,018.76/8,286.44
  6. Step 6: Final answer
    x = 4,108.88

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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.