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Finding the Fourth Proportional to 15,748.94, 21,732.74 and 8,674.00

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Solution

The fourth proportional to 15,748.94, 21,732.74 and 8,674.00 is: 11,969.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.94 : 21,732.74 = 8,674.00 : x
  2. Step 2: Convert to fraction form
    15,748.94/21,732.74 = 8,674.00/x
  3. Step 3: Cross multiply
    15,748.94x = 21,732.74 × 8,674.00
  4. Step 4: Simplify right side
    15,748.94x = 188,509,721.59
  5. Step 5: Solve for x
    x = 188,509,721.59/15,748.94
  6. Step 6: Final answer
    x = 11,969.67

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