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Finding the Fourth Proportional to 8,166.21, 11,269.49 and 6,118.49

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Solution

The fourth proportional to 8,166.21, 11,269.49 and 6,118.49 is: 8,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,166.21 : 11,269.49 = 6,118.49 : x
  2. Step 2: Convert to fraction form
    8,166.21/11,269.49 = 6,118.49/x
  3. Step 3: Cross multiply
    8,166.21x = 11,269.49 × 6,118.49
  4. Step 4: Simplify right side
    8,166.21x = 68,952,261.87
  5. Step 5: Solve for x
    x = 68,952,261.87/8,166.21
  6. Step 6: Final answer
    x = 8,443.61

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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.