Home / 12,961.49-19,425.83-8,279.69

Finding the Fourth Proportional to 12,961.49, 19,425.83 and 8,279.69

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Solution

The fourth proportional to 12,961.49, 19,425.83 and 8,279.69 is: 12,409.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.49 : 19,425.83 = 8,279.69 : x
  2. Step 2: Convert to fraction form
    12,961.49/19,425.83 = 8,279.69/x
  3. Step 3: Cross multiply
    12,961.49x = 19,425.83 × 8,279.69
  4. Step 4: Simplify right side
    12,961.49x = 160,839,711.87
  5. Step 5: Solve for x
    x = 160,839,711.87/12,961.49
  6. Step 6: Final answer
    x = 12,409.05

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