Home / 12,219.18-16,865.10-7,440.71

Finding the Fourth Proportional to 12,219.18, 16,865.10 and 7,440.71

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Solution

The fourth proportional to 12,219.18, 16,865.10 and 7,440.71 is: 10,269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.18 : 16,865.10 = 7,440.71 : x
  2. Step 2: Convert to fraction form
    12,219.18/16,865.10 = 7,440.71/x
  3. Step 3: Cross multiply
    12,219.18x = 16,865.10 × 7,440.71
  4. Step 4: Simplify right side
    12,219.18x = 125,488,233.90
  5. Step 5: Solve for x
    x = 125,488,233.90/12,219.18
  6. Step 6: Final answer
    x = 10,269.78

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