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Finding the Fourth Proportional to 11,112, 16,668 and 2,904

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Solution

The fourth proportional to 11,112, 16,668 and 2,904 is: 4,356

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112 : 16,668 = 2,904 : x
  2. Step 2: Convert to fraction form
    11,112/16,668 = 2,904/x
  3. Step 3: Cross multiply
    11,112x = 16,668 × 2,904
  4. Step 4: Simplify right side
    11,112x = 48,403,872
  5. Step 5: Solve for x
    x = 48,403,872/11,112
  6. Step 6: Final answer
    x = 4,356

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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.