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Finding the Fourth Proportional to 11,351.98, 17,040.34 and 8,608.65

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Solution

The fourth proportional to 11,351.98, 17,040.34 and 8,608.65 is: 12,922.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,351.98 : 17,040.34 = 8,608.65 : x
  2. Step 2: Convert to fraction form
    11,351.98/17,040.34 = 8,608.65/x
  3. Step 3: Cross multiply
    11,351.98x = 17,040.34 × 8,608.65
  4. Step 4: Simplify right side
    11,351.98x = 146,694,269.80
  5. Step 5: Solve for x
    x = 146,694,269.80/11,351.98
  6. Step 6: Final answer
    x = 12,922.35

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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.