Home / 11,976.36-17,968.50-5,311.95

Finding the Fourth Proportional to 11,976.36, 17,968.50 and 5,311.95

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Solution

The fourth proportional to 11,976.36, 17,968.50 and 5,311.95 is: 7,969.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.36 : 17,968.50 = 5,311.95 : x
  2. Step 2: Convert to fraction form
    11,976.36/17,968.50 = 5,311.95/x
  3. Step 3: Cross multiply
    11,976.36x = 17,968.50 × 5,311.95
  4. Step 4: Simplify right side
    11,976.36x = 95,447,773.58
  5. Step 5: Solve for x
    x = 95,447,773.58/11,976.36
  6. Step 6: Final answer
    x = 7,969.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.