Home / 18,571.22-25,628.61-10,187.78

Finding the Fourth Proportional to 18,571.22, 25,628.61 and 10,187.78

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Solution

The fourth proportional to 18,571.22, 25,628.61 and 10,187.78 is: 14,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,571.22 : 25,628.61 = 10,187.78 : x
  2. Step 2: Convert to fraction form
    18,571.22/25,628.61 = 10,187.78/x
  3. Step 3: Cross multiply
    18,571.22x = 25,628.61 × 10,187.78
  4. Step 4: Simplify right side
    18,571.22x = 261,098,640.39
  5. Step 5: Solve for x
    x = 261,098,640.39/18,571.22
  6. Step 6: Final answer
    x = 14,059.32

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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.