Home / 8,576.45-12,865.62-2,731.72

Finding the Fourth Proportional to 8,576.45, 12,865.62 and 2,731.72

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Solution

The fourth proportional to 8,576.45, 12,865.62 and 2,731.72 is: 4,097.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.45 : 12,865.62 = 2,731.72 : x
  2. Step 2: Convert to fraction form
    8,576.45/12,865.62 = 2,731.72/x
  3. Step 3: Cross multiply
    8,576.45x = 12,865.62 × 2,731.72
  4. Step 4: Simplify right side
    8,576.45x = 35,145,207.14
  5. Step 5: Solve for x
    x = 35,145,207.14/8,576.45
  6. Step 6: Final answer
    x = 4,097.87

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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.