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Finding the Fourth Proportional to 13,938.83, 20,901.32 and 5,053.80

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Solution

The fourth proportional to 13,938.83, 20,901.32 and 5,053.80 is: 7,578.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.83 : 20,901.32 = 5,053.80 : x
  2. Step 2: Convert to fraction form
    13,938.83/20,901.32 = 5,053.80/x
  3. Step 3: Cross multiply
    13,938.83x = 20,901.32 × 5,053.80
  4. Step 4: Simplify right side
    13,938.83x = 105,631,065.75
  5. Step 5: Solve for x
    x = 105,631,065.75/13,938.83
  6. Step 6: Final answer
    x = 7,578.19

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