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Finding the Fourth Proportional to 8,608.86, 11,880.28 and 5,622.92

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Solution

The fourth proportional to 8,608.86, 11,880.28 and 5,622.92 is: 7,759.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.86 : 11,880.28 = 5,622.92 : x
  2. Step 2: Convert to fraction form
    8,608.86/11,880.28 = 5,622.92/x
  3. Step 3: Cross multiply
    8,608.86x = 11,880.28 × 5,622.92
  4. Step 4: Simplify right side
    8,608.86x = 66,801,864.02
  5. Step 5: Solve for x
    x = 66,801,864.02/8,608.86
  6. Step 6: Final answer
    x = 7,759.66

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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.