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Finding the Fourth Proportional to 17,759.82, 26,642.97 and 8,879.79

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Solution

The fourth proportional to 17,759.82, 26,642.97 and 8,879.79 is: 13,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,759.82 : 26,642.97 = 8,879.79 : x
  2. Step 2: Convert to fraction form
    17,759.82/26,642.97 = 8,879.79/x
  3. Step 3: Cross multiply
    17,759.82x = 26,642.97 × 8,879.79
  4. Step 4: Simplify right side
    17,759.82x = 236,583,978.58
  5. Step 5: Solve for x
    x = 236,583,978.58/17,759.82
  6. Step 6: Final answer
    x = 13,321.30

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1.5x scale

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.