Home / 18,505.89-25,540.92-11,794.50

Finding the Fourth Proportional to 18,505.89, 25,540.92 and 11,794.50

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Solution

The fourth proportional to 18,505.89, 25,540.92 and 11,794.50 is: 16,278.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.89 : 25,540.92 = 11,794.50 : x
  2. Step 2: Convert to fraction form
    18,505.89/25,540.92 = 11,794.50/x
  3. Step 3: Cross multiply
    18,505.89x = 25,540.92 × 11,794.50
  4. Step 4: Simplify right side
    18,505.89x = 301,242,380.94
  5. Step 5: Solve for x
    x = 301,242,380.94/18,505.89
  6. Step 6: Final answer
    x = 16,278.19

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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.