Home / 26,389.78-39,587.26-7,669.97

Finding the Fourth Proportional to 26,389.78, 39,587.26 and 7,669.97

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Solution

The fourth proportional to 26,389.78, 39,587.26 and 7,669.97 is: 11,505.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,389.78 : 39,587.26 = 7,669.97 : x
  2. Step 2: Convert to fraction form
    26,389.78/39,587.26 = 7,669.97/x
  3. Step 3: Cross multiply
    26,389.78x = 39,587.26 × 7,669.97
  4. Step 4: Simplify right side
    26,389.78x = 303,633,042.30
  5. Step 5: Solve for x
    x = 303,633,042.30/26,389.78
  6. Step 6: Final answer
    x = 11,505.71

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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.