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Finding the Fourth Proportional to 9,074, 13,611 and 2,918

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Solution

The fourth proportional to 9,074, 13,611 and 2,918 is: 4,377

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,074 : 13,611 = 2,918 : x
  2. Step 2: Convert to fraction form
    9,074/13,611 = 2,918/x
  3. Step 3: Cross multiply
    9,074x = 13,611 × 2,918
  4. Step 4: Simplify right side
    9,074x = 39,716,898
  5. Step 5: Solve for x
    x = 39,716,898/9,074
  6. Step 6: Final answer
    x = 4,377

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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.