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Finding the Fourth Proportional to 7,072.40, 10,608.60 and 6,227.60

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Solution

The fourth proportional to 7,072.40, 10,608.60 and 6,227.60 is: 9,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.40 : 10,608.60 = 6,227.60 : x
  2. Step 2: Convert to fraction form
    7,072.40/10,608.60 = 6,227.60/x
  3. Step 3: Cross multiply
    7,072.40x = 10,608.60 × 6,227.60
  4. Step 4: Simplify right side
    7,072.40x = 66,066,117.36
  5. Step 5: Solve for x
    x = 66,066,117.36/7,072.40
  6. Step 6: Final answer
    x = 9,341.40

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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.