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Finding the Fourth Proportional to 12,133.98, 18,185.58 and 5,463.36

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Solution

The fourth proportional to 12,133.98, 18,185.58 and 5,463.36 is: 8,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,133.98 : 18,185.58 = 5,463.36 : x
  2. Step 2: Convert to fraction form
    12,133.98/18,185.58 = 5,463.36/x
  3. Step 3: Cross multiply
    12,133.98x = 18,185.58 × 5,463.36
  4. Step 4: Simplify right side
    12,133.98x = 99,354,370.35
  5. Step 5: Solve for x
    x = 99,354,370.35/12,133.98
  6. Step 6: Final answer
    x = 8,188.11

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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.