Home / 17,540.38-26,268.54-12,783.79

Finding the Fourth Proportional to 17,540.38, 26,268.54 and 12,783.79

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Solution

The fourth proportional to 17,540.38, 26,268.54 and 12,783.79 is: 19,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,540.38 : 26,268.54 = 12,783.79 : x
  2. Step 2: Convert to fraction form
    17,540.38/26,268.54 = 12,783.79/x
  3. Step 3: Cross multiply
    17,540.38x = 26,268.54 × 12,783.79
  4. Step 4: Simplify right side
    17,540.38x = 335,811,498.97
  5. Step 5: Solve for x
    x = 335,811,498.97/17,540.38
  6. Step 6: Final answer
    x = 19,145.05

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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.