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Finding the Fourth Proportional to 7,237.05, 9,991.62 and 5,555.24

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Solution

The fourth proportional to 7,237.05, 9,991.62 and 5,555.24 is: 7,669.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237.05 : 9,991.62 = 5,555.24 : x
  2. Step 2: Convert to fraction form
    7,237.05/9,991.62 = 5,555.24/x
  3. Step 3: Cross multiply
    7,237.05x = 9,991.62 × 5,555.24
  4. Step 4: Simplify right side
    7,237.05x = 55,505,847.09
  5. Step 5: Solve for x
    x = 55,505,847.09/7,237.05
  6. Step 6: Final answer
    x = 7,669.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.