Home / 11,976.46-17,966.80-4,078.56

Finding the Fourth Proportional to 11,976.46, 17,966.80 and 4,078.56

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Solution

The fourth proportional to 11,976.46, 17,966.80 and 4,078.56 is: 6,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,976.46 : 17,966.80 = 4,078.56 : x
  2. Step 2: Convert to fraction form
    11,976.46/17,966.80 = 4,078.56/x
  3. Step 3: Cross multiply
    11,976.46x = 17,966.80 × 4,078.56
  4. Step 4: Simplify right side
    11,976.46x = 73,278,671.81
  5. Step 5: Solve for x
    x = 73,278,671.81/11,976.46
  6. Step 6: Final answer
    x = 6,118.56

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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.