Home / 10,619.34-15,932.25-5,428.86

Finding the Fourth Proportional to 10,619.34, 15,932.25 and 5,428.86

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Solution

The fourth proportional to 10,619.34, 15,932.25 and 5,428.86 is: 8,144.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.34 : 15,932.25 = 5,428.86 : x
  2. Step 2: Convert to fraction form
    10,619.34/15,932.25 = 5,428.86/x
  3. Step 3: Cross multiply
    10,619.34x = 15,932.25 × 5,428.86
  4. Step 4: Simplify right side
    10,619.34x = 86,493,954.74
  5. Step 5: Solve for x
    x = 86,493,954.74/10,619.34
  6. Step 6: Final answer
    x = 8,144.95

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