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Finding the Fourth Proportional to 13,238.36, 19,851.71 and 6,220.37

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Solution

The fourth proportional to 13,238.36, 19,851.71 and 6,220.37 is: 9,327.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.36 : 19,851.71 = 6,220.37 : x
  2. Step 2: Convert to fraction form
    13,238.36/19,851.71 = 6,220.37/x
  3. Step 3: Cross multiply
    13,238.36x = 19,851.71 × 6,220.37
  4. Step 4: Simplify right side
    13,238.36x = 123,484,850.97
  5. Step 5: Solve for x
    x = 123,484,850.97/13,238.36
  6. Step 6: Final answer
    x = 9,327.81

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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.