Home / 26,391.78-39,590.26-7,671.97

Finding the Fourth Proportional to 26,391.78, 39,590.26 and 7,671.97

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Solution

The fourth proportional to 26,391.78, 39,590.26 and 7,671.97 is: 11,508.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,391.78 : 39,590.26 = 7,671.97 : x
  2. Step 2: Convert to fraction form
    26,391.78/39,590.26 = 7,671.97/x
  3. Step 3: Cross multiply
    26,391.78x = 39,590.26 × 7,671.97
  4. Step 4: Simplify right side
    26,391.78x = 303,735,287.01
  5. Step 5: Solve for x
    x = 303,735,287.01/26,391.78
  6. Step 6: Final answer
    x = 11,508.71

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1.5x scale

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.