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Finding the Fourth Proportional to 8,576.28, 12,865.64 and 2,730.92

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Solution

The fourth proportional to 8,576.28, 12,865.64 and 2,730.92 is: 4,096.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.28 : 12,865.64 = 2,730.92 : x
  2. Step 2: Convert to fraction form
    8,576.28/12,865.64 = 2,730.92/x
  3. Step 3: Cross multiply
    8,576.28x = 12,865.64 × 2,730.92
  4. Step 4: Simplify right side
    8,576.28x = 35,134,955.61
  5. Step 5: Solve for x
    x = 35,134,955.61/8,576.28
  6. Step 6: Final answer
    x = 4,096.76

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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.