Home / 26,879.13-40,324.74-9,108.78

Finding the Fourth Proportional to 26,879.13, 40,324.74 and 9,108.78

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Solution

The fourth proportional to 26,879.13, 40,324.74 and 9,108.78 is: 13,665.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.13 : 40,324.74 = 9,108.78 : x
  2. Step 2: Convert to fraction form
    26,879.13/40,324.74 = 9,108.78/x
  3. Step 3: Cross multiply
    26,879.13x = 40,324.74 × 9,108.78
  4. Step 4: Simplify right side
    26,879.13x = 367,309,185.22
  5. Step 5: Solve for x
    x = 367,309,185.22/26,879.13
  6. Step 6: Final answer
    x = 13,665.22

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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.