Home / 7,877.06-11,816.16-2,611.85

Finding the Fourth Proportional to 7,877.06, 11,816.16 and 2,611.85

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Solution

The fourth proportional to 7,877.06, 11,816.16 and 2,611.85 is: 3,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.06 : 11,816.16 = 2,611.85 : x
  2. Step 2: Convert to fraction form
    7,877.06/11,816.16 = 2,611.85/x
  3. Step 3: Cross multiply
    7,877.06x = 11,816.16 × 2,611.85
  4. Step 4: Simplify right side
    7,877.06x = 30,862,067.04
  5. Step 5: Solve for x
    x = 30,862,067.04/7,877.06
  6. Step 6: Final answer
    x = 3,917.97

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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.