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Finding the Fourth Proportional to 8,131.82, 12,199.41 and 4,623.44

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Solution

The fourth proportional to 8,131.82, 12,199.41 and 4,623.44 is: 6,936.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.82 : 12,199.41 = 4,623.44 : x
  2. Step 2: Convert to fraction form
    8,131.82/12,199.41 = 4,623.44/x
  3. Step 3: Cross multiply
    8,131.82x = 12,199.41 × 4,623.44
  4. Step 4: Simplify right side
    8,131.82x = 56,403,179.17
  5. Step 5: Solve for x
    x = 56,403,179.17/8,131.82
  6. Step 6: Final answer
    x = 6,936.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.