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Finding the Fourth Proportional to 11,619, 16,036.38 and 6,651

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Solution

The fourth proportional to 11,619, 16,036.38 and 6,651 is: 9,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619 : 16,036.38 = 6,651 : x
  2. Step 2: Convert to fraction form
    11,619/16,036.38 = 6,651/x
  3. Step 3: Cross multiply
    11,619x = 16,036.38 × 6,651
  4. Step 4: Simplify right side
    11,619x = 106,657,963.38
  5. Step 5: Solve for x
    x = 106,657,963.38/11,619
  6. Step 6: Final answer
    x = 9,179.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.