Home / 7,816.65-10,786.91-4,231.59

Finding the Fourth Proportional to 7,816.65, 10,786.91 and 4,231.59

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Solution

The fourth proportional to 7,816.65, 10,786.91 and 4,231.59 is: 5,839.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.65 : 10,786.91 = 4,231.59 : x
  2. Step 2: Convert to fraction form
    7,816.65/10,786.91 = 4,231.59/x
  3. Step 3: Cross multiply
    7,816.65x = 10,786.91 × 4,231.59
  4. Step 4: Simplify right side
    7,816.65x = 45,645,759.33
  5. Step 5: Solve for x
    x = 45,645,759.33/7,816.65
  6. Step 6: Final answer
    x = 5,839.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.