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Finding the Fourth Proportional to 19,962, 29,943 and 6,111

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Solution

The fourth proportional to 19,962, 29,943 and 6,111 is: 9,166.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,962 : 29,943 = 6,111 : x
  2. Step 2: Convert to fraction form
    19,962/29,943 = 6,111/x
  3. Step 3: Cross multiply
    19,962x = 29,943 × 6,111
  4. Step 4: Simplify right side
    19,962x = 182,981,673
  5. Step 5: Solve for x
    x = 182,981,673/19,962
  6. Step 6: Final answer
    x = 9,166.50

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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.