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Finding the Fourth Proportional to 8,608.29, 11,883.38 and 6,618.15

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Solution

The fourth proportional to 8,608.29, 11,883.38 and 6,618.15 is: 9,136.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.29 : 11,883.38 = 6,618.15 : x
  2. Step 2: Convert to fraction form
    8,608.29/11,883.38 = 6,618.15/x
  3. Step 3: Cross multiply
    8,608.29x = 11,883.38 × 6,618.15
  4. Step 4: Simplify right side
    8,608.29x = 78,645,958.26
  5. Step 5: Solve for x
    x = 78,645,958.26/8,608.29
  6. Step 6: Final answer
    x = 9,136.07

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1.5x scale

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.