Home / 7,983.36-11,976.48-3,366.72

Finding the Fourth Proportional to 7,983.36, 11,976.48 and 3,366.72

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Solution

The fourth proportional to 7,983.36, 11,976.48 and 3,366.72 is: 5,050.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.36 : 11,976.48 = 3,366.72 : x
  2. Step 2: Convert to fraction form
    7,983.36/11,976.48 = 3,366.72/x
  3. Step 3: Cross multiply
    7,983.36x = 11,976.48 × 3,366.72
  4. Step 4: Simplify right side
    7,983.36x = 40,321,454.75
  5. Step 5: Solve for x
    x = 40,321,454.75/7,983.36
  6. Step 6: Final answer
    x = 5,050.69

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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.