Home / 8,727.78-13,091.70-2,571.78

Finding the Fourth Proportional to 8,727.78, 13,091.70 and 2,571.78

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Solution

The fourth proportional to 8,727.78, 13,091.70 and 2,571.78 is: 3,857.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,727.78 : 13,091.70 = 2,571.78 : x
  2. Step 2: Convert to fraction form
    8,727.78/13,091.70 = 2,571.78/x
  3. Step 3: Cross multiply
    8,727.78x = 13,091.70 × 2,571.78
  4. Step 4: Simplify right side
    8,727.78x = 33,668,972.23
  5. Step 5: Solve for x
    x = 33,668,972.23/8,727.78
  6. Step 6: Final answer
    x = 3,857.68

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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.