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Finding the Fourth Proportional to 12,168, 18,252 and 2,934

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Solution

The fourth proportional to 12,168, 18,252 and 2,934 is: 4,401

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168 : 18,252 = 2,934 : x
  2. Step 2: Convert to fraction form
    12,168/18,252 = 2,934/x
  3. Step 3: Cross multiply
    12,168x = 18,252 × 2,934
  4. Step 4: Simplify right side
    12,168x = 53,551,368
  5. Step 5: Solve for x
    x = 53,551,368/12,168
  6. Step 6: Final answer
    x = 4,401

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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.