Home / 7,769.21-11,657.46-3,873.92

Finding the Fourth Proportional to 7,769.21, 11,657.46 and 3,873.92

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Solution

The fourth proportional to 7,769.21, 11,657.46 and 3,873.92 is: 5,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.21 : 11,657.46 = 3,873.92 : x
  2. Step 2: Convert to fraction form
    7,769.21/11,657.46 = 3,873.92/x
  3. Step 3: Cross multiply
    7,769.21x = 11,657.46 × 3,873.92
  4. Step 4: Simplify right side
    7,769.21x = 45,160,067.44
  5. Step 5: Solve for x
    x = 45,160,067.44/7,769.21
  6. Step 6: Final answer
    x = 5,812.70

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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.