Home / 18,769.27-25,906.89-11,220.88

Finding the Fourth Proportional to 18,769.27, 25,906.89 and 11,220.88

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Solution

The fourth proportional to 18,769.27, 25,906.89 and 11,220.88 is: 15,487.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.27 : 25,906.89 = 11,220.88 : x
  2. Step 2: Convert to fraction form
    18,769.27/25,906.89 = 11,220.88/x
  3. Step 3: Cross multiply
    18,769.27x = 25,906.89 × 11,220.88
  4. Step 4: Simplify right side
    18,769.27x = 290,698,103.86
  5. Step 5: Solve for x
    x = 290,698,103.86/18,769.27
  6. Step 6: Final answer
    x = 15,487.98

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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.