Home / 17,135.78-25,687.26-8,365.91

Finding the Fourth Proportional to 17,135.78, 25,687.26 and 8,365.91

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Solution

The fourth proportional to 17,135.78, 25,687.26 and 8,365.91 is: 12,540.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,135.78 : 25,687.26 = 8,365.91 : x
  2. Step 2: Convert to fraction form
    17,135.78/25,687.26 = 8,365.91/x
  3. Step 3: Cross multiply
    17,135.78x = 25,687.26 × 8,365.91
  4. Step 4: Simplify right side
    17,135.78x = 214,897,176.87
  5. Step 5: Solve for x
    x = 214,897,176.87/17,135.78
  6. Step 6: Final answer
    x = 12,540.85

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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.