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Finding the Fourth Proportional to 12,281.72, 16,948.78 and 6,692.72

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Solution

The fourth proportional to 12,281.72, 16,948.78 and 6,692.72 is: 9,235.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.72 : 16,948.78 = 6,692.72 : x
  2. Step 2: Convert to fraction form
    12,281.72/16,948.78 = 6,692.72/x
  3. Step 3: Cross multiply
    12,281.72x = 16,948.78 × 6,692.72
  4. Step 4: Simplify right side
    12,281.72x = 113,433,438.88
  5. Step 5: Solve for x
    x = 113,433,438.88/12,281.72
  6. Step 6: Final answer
    x = 9,235.96

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