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Finding the Fourth Proportional to 8,729.83, 11,968.62 and 8,571.88

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Solution

The fourth proportional to 8,729.83, 11,968.62 and 8,571.88 is: 11,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.83 : 11,968.62 = 8,571.88 : x
  2. Step 2: Convert to fraction form
    8,729.83/11,968.62 = 8,571.88/x
  3. Step 3: Cross multiply
    8,729.83x = 11,968.62 × 8,571.88
  4. Step 4: Simplify right side
    8,729.83x = 102,593,544.48
  5. Step 5: Solve for x
    x = 102,593,544.48/8,729.83
  6. Step 6: Final answer
    x = 11,752.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.