Home / 13,891.23-19,149.98-9,905.43

Finding the Fourth Proportional to 13,891.23, 19,149.98 and 9,905.43

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Solution

The fourth proportional to 13,891.23, 19,149.98 and 9,905.43 is: 13,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,891.23 : 19,149.98 = 9,905.43 : x
  2. Step 2: Convert to fraction form
    13,891.23/19,149.98 = 9,905.43/x
  3. Step 3: Cross multiply
    13,891.23x = 19,149.98 × 9,905.43
  4. Step 4: Simplify right side
    13,891.23x = 189,688,736.86
  5. Step 5: Solve for x
    x = 189,688,736.86/13,891.23
  6. Step 6: Final answer
    x = 13,655.29

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