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Finding the Fourth Proportional to 8,608.13, 12,910.97 and 2,763.98

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Solution

The fourth proportional to 8,608.13, 12,910.97 and 2,763.98 is: 4,145.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.13 : 12,910.97 = 2,763.98 : x
  2. Step 2: Convert to fraction form
    8,608.13/12,910.97 = 2,763.98/x
  3. Step 3: Cross multiply
    8,608.13x = 12,910.97 × 2,763.98
  4. Step 4: Simplify right side
    8,608.13x = 35,685,605.22
  5. Step 5: Solve for x
    x = 35,685,605.22/8,608.13
  6. Step 6: Final answer
    x = 4,145.57

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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.