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Finding the Fourth Proportional to 11,214, 16,821 and 3,006

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Solution

The fourth proportional to 11,214, 16,821 and 3,006 is: 4,509

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214 : 16,821 = 3,006 : x
  2. Step 2: Convert to fraction form
    11,214/16,821 = 3,006/x
  3. Step 3: Cross multiply
    11,214x = 16,821 × 3,006
  4. Step 4: Simplify right side
    11,214x = 50,563,926
  5. Step 5: Solve for x
    x = 50,563,926/11,214
  6. Step 6: Final answer
    x = 4,509

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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.