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Finding the Fourth Proportional to 12,127.82, 18,189.59 and 3,363.41

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Solution

The fourth proportional to 12,127.82, 18,189.59 and 3,363.41 is: 5,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127.82 : 18,189.59 = 3,363.41 : x
  2. Step 2: Convert to fraction form
    12,127.82/18,189.59 = 3,363.41/x
  3. Step 3: Cross multiply
    12,127.82x = 18,189.59 × 3,363.41
  4. Step 4: Simplify right side
    12,127.82x = 61,178,941.14
  5. Step 5: Solve for x
    x = 61,178,941.14/12,127.82
  6. Step 6: Final answer
    x = 5,044.51

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