Home / 19,866.58-27,418.26-11,908.54

Finding the Fourth Proportional to 19,866.58, 27,418.26 and 11,908.54

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Solution

The fourth proportional to 19,866.58, 27,418.26 and 11,908.54 is: 16,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,866.58 : 27,418.26 = 11,908.54 : x
  2. Step 2: Convert to fraction form
    19,866.58/27,418.26 = 11,908.54/x
  3. Step 3: Cross multiply
    19,866.58x = 27,418.26 × 11,908.54
  4. Step 4: Simplify right side
    19,866.58x = 326,511,445.94
  5. Step 5: Solve for x
    x = 326,511,445.94/19,866.58
  6. Step 6: Final answer
    x = 16,435.21

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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.