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Finding the Fourth Proportional to 8,633.41, 11,884.72 and 6,391.06

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Solution

The fourth proportional to 8,633.41, 11,884.72 and 6,391.06 is: 8,797.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.41 : 11,884.72 = 6,391.06 : x
  2. Step 2: Convert to fraction form
    8,633.41/11,884.72 = 6,391.06/x
  3. Step 3: Cross multiply
    8,633.41x = 11,884.72 × 6,391.06
  4. Step 4: Simplify right side
    8,633.41x = 75,955,958.60
  5. Step 5: Solve for x
    x = 75,955,958.60/8,633.41
  6. Step 6: Final answer
    x = 8,797.91

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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.