Home / 18,789.54-25,926.42-11,238.96

Finding the Fourth Proportional to 18,789.54, 25,926.42 and 11,238.96

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Solution

The fourth proportional to 18,789.54, 25,926.42 and 11,238.96 is: 15,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.54 : 25,926.42 = 11,238.96 : x
  2. Step 2: Convert to fraction form
    18,789.54/25,926.42 = 11,238.96/x
  3. Step 3: Cross multiply
    18,789.54x = 25,926.42 × 11,238.96
  4. Step 4: Simplify right side
    18,789.54x = 291,385,997.32
  5. Step 5: Solve for x
    x = 291,385,997.32/18,789.54
  6. Step 6: Final answer
    x = 15,507.88

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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.