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Finding the Fourth Proportional to 11,399.32, 17,074.86 and 7,237.12

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Solution

The fourth proportional to 11,399.32, 17,074.86 and 7,237.12 is: 10,840.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,399.32 : 17,074.86 = 7,237.12 : x
  2. Step 2: Convert to fraction form
    11,399.32/17,074.86 = 7,237.12/x
  3. Step 3: Cross multiply
    11,399.32x = 17,074.86 × 7,237.12
  4. Step 4: Simplify right side
    11,399.32x = 123,572,810.80
  5. Step 5: Solve for x
    x = 123,572,810.80/11,399.32
  6. Step 6: Final answer
    x = 10,840.37

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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.