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Finding the Fourth Proportional to 7,481.45, 11,222.16 and 2,009.45

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Solution

The fourth proportional to 7,481.45, 11,222.16 and 2,009.45 is: 3,014.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.45 : 11,222.16 = 2,009.45 : x
  2. Step 2: Convert to fraction form
    7,481.45/11,222.16 = 2,009.45/x
  3. Step 3: Cross multiply
    7,481.45x = 11,222.16 × 2,009.45
  4. Step 4: Simplify right side
    7,481.45x = 22,550,313.30
  5. Step 5: Solve for x
    x = 22,550,313.30/7,481.45
  6. Step 6: Final answer
    x = 3,014.17

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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.