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Finding the Fourth Proportional to 10,453.40, 15,680.16 and 2,662.22

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Solution

The fourth proportional to 10,453.40, 15,680.16 and 2,662.22 is: 3,993.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,453.40 : 15,680.16 = 2,662.22 : x
  2. Step 2: Convert to fraction form
    10,453.40/15,680.16 = 2,662.22/x
  3. Step 3: Cross multiply
    10,453.40x = 15,680.16 × 2,662.22
  4. Step 4: Simplify right side
    10,453.40x = 41,744,035.56
  5. Step 5: Solve for x
    x = 41,744,035.56/10,453.40
  6. Step 6: Final answer
    x = 3,993.35

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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.