Home / 7,912.35-11,816.91-6,729.75

Finding the Fourth Proportional to 7,912.35, 11,816.91 and 6,729.75

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Solution

The fourth proportional to 7,912.35, 11,816.91 and 6,729.75 is: 10,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912.35 : 11,816.91 = 6,729.75 : x
  2. Step 2: Convert to fraction form
    7,912.35/11,816.91 = 6,729.75/x
  3. Step 3: Cross multiply
    7,912.35x = 11,816.91 × 6,729.75
  4. Step 4: Simplify right side
    7,912.35x = 79,524,850.07
  5. Step 5: Solve for x
    x = 79,524,850.07/7,912.35
  6. Step 6: Final answer
    x = 10,050.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.