Home / 11,976.46-17,964.69-5,400.88

Finding the Fourth Proportional to 11,976.46, 17,964.69 and 5,400.88

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Solution

The fourth proportional to 11,976.46, 17,964.69 and 5,400.88 is: 8,101.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.46 : 17,964.69 = 5,400.88 : x
  2. Step 2: Convert to fraction form
    11,976.46/17,964.69 = 5,400.88/x
  3. Step 3: Cross multiply
    11,976.46x = 17,964.69 × 5,400.88
  4. Step 4: Simplify right side
    11,976.46x = 97,025,069.76
  5. Step 5: Solve for x
    x = 97,025,069.76/11,976.46
  6. Step 6: Final answer
    x = 8,101.32

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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.