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Finding the Fourth Proportional to 12,091.70, 18,137.66 and 3,327.10

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Solution

The fourth proportional to 12,091.70, 18,137.66 and 3,327.10 is: 4,990.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.70 : 18,137.66 = 3,327.10 : x
  2. Step 2: Convert to fraction form
    12,091.70/18,137.66 = 3,327.10/x
  3. Step 3: Cross multiply
    12,091.70x = 18,137.66 × 3,327.10
  4. Step 4: Simplify right side
    12,091.70x = 60,345,746.61
  5. Step 5: Solve for x
    x = 60,345,746.61/12,091.70
  6. Step 6: Final answer
    x = 4,990.67

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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.