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Finding the Fourth Proportional to 11,210.73, 16,812.15 and 3,311.15

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Solution

The fourth proportional to 11,210.73, 16,812.15 and 3,311.15 is: 4,965.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.73 : 16,812.15 = 3,311.15 : x
  2. Step 2: Convert to fraction form
    11,210.73/16,812.15 = 3,311.15/x
  3. Step 3: Cross multiply
    11,210.73x = 16,812.15 × 3,311.15
  4. Step 4: Simplify right side
    11,210.73x = 55,667,466.41
  5. Step 5: Solve for x
    x = 55,667,466.41/11,210.73
  6. Step 6: Final answer
    x = 4,965.55

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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.