Home / 7,786.09-11,682.15-2,859.13

Finding the Fourth Proportional to 7,786.09, 11,682.15 and 2,859.13

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Solution

The fourth proportional to 7,786.09, 11,682.15 and 2,859.13 is: 4,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.09 : 11,682.15 = 2,859.13 : x
  2. Step 2: Convert to fraction form
    7,786.09/11,682.15 = 2,859.13/x
  3. Step 3: Cross multiply
    7,786.09x = 11,682.15 × 2,859.13
  4. Step 4: Simplify right side
    7,786.09x = 33,400,785.53
  5. Step 5: Solve for x
    x = 33,400,785.53/7,786.09
  6. Step 6: Final answer
    x = 4,289.80

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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.