Home / 8,635.25-12,954.71-2,791.42

Finding the Fourth Proportional to 8,635.25, 12,954.71 and 2,791.42

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Solution

The fourth proportional to 8,635.25, 12,954.71 and 2,791.42 is: 4,187.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.25 : 12,954.71 = 2,791.42 : x
  2. Step 2: Convert to fraction form
    8,635.25/12,954.71 = 2,791.42/x
  3. Step 3: Cross multiply
    8,635.25x = 12,954.71 × 2,791.42
  4. Step 4: Simplify right side
    8,635.25x = 36,162,011.18
  5. Step 5: Solve for x
    x = 36,162,011.18/8,635.25
  6. Step 6: Final answer
    x = 4,187.72

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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.