Home / 7,976.88-11,965.32-3,815.10

Finding the Fourth Proportional to 7,976.88, 11,965.32 and 3,815.10

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Solution

The fourth proportional to 7,976.88, 11,965.32 and 3,815.10 is: 5,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.88 : 11,965.32 = 3,815.10 : x
  2. Step 2: Convert to fraction form
    7,976.88/11,965.32 = 3,815.10/x
  3. Step 3: Cross multiply
    7,976.88x = 11,965.32 × 3,815.10
  4. Step 4: Simplify right side
    7,976.88x = 45,648,892.33
  5. Step 5: Solve for x
    x = 45,648,892.33/7,976.88
  6. Step 6: Final answer
    x = 5,722.65

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Similar ratio
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1.5x scale

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.