Home / 6,611.68-9,912.66-3,151.36

Finding the Fourth Proportional to 6,611.68, 9,912.66 and 3,151.36

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Solution

The fourth proportional to 6,611.68, 9,912.66 and 3,151.36 is: 4,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.68 : 9,912.66 = 3,151.36 : x
  2. Step 2: Convert to fraction form
    6,611.68/9,912.66 = 3,151.36/x
  3. Step 3: Cross multiply
    6,611.68x = 9,912.66 × 3,151.36
  4. Step 4: Simplify right side
    6,611.68x = 31,238,360.22
  5. Step 5: Solve for x
    x = 31,238,360.22/6,611.68
  6. Step 6: Final answer
    x = 4,724.72

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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.