Home / 26,859.89-40,285.37-8,135.48

Finding the Fourth Proportional to 26,859.89, 40,285.37 and 8,135.48

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Solution

The fourth proportional to 26,859.89, 40,285.37 and 8,135.48 is: 12,201.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,859.89 : 40,285.37 = 8,135.48 : x
  2. Step 2: Convert to fraction form
    26,859.89/40,285.37 = 8,135.48/x
  3. Step 3: Cross multiply
    26,859.89x = 40,285.37 × 8,135.48
  4. Step 4: Simplify right side
    26,859.89x = 327,740,600.16
  5. Step 5: Solve for x
    x = 327,740,600.16/26,859.89
  6. Step 6: Final answer
    x = 12,201.86

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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.