Home / 8,576.90-12,857.55-3,894.38

Finding the Fourth Proportional to 8,576.90, 12,857.55 and 3,894.38

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Solution

The fourth proportional to 8,576.90, 12,857.55 and 3,894.38 is: 5,838.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.90 : 12,857.55 = 3,894.38 : x
  2. Step 2: Convert to fraction form
    8,576.90/12,857.55 = 3,894.38/x
  3. Step 3: Cross multiply
    8,576.90x = 12,857.55 × 3,894.38
  4. Step 4: Simplify right side
    8,576.90x = 50,072,184.10
  5. Step 5: Solve for x
    x = 50,072,184.10/8,576.90
  6. Step 6: Final answer
    x = 5,838.03

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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.