Home / 18,257.32-27,380.22-5,108.68

Finding the Fourth Proportional to 18,257.32, 27,380.22 and 5,108.68

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Solution

The fourth proportional to 18,257.32, 27,380.22 and 5,108.68 is: 7,661.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,257.32 : 27,380.22 = 5,108.68 : x
  2. Step 2: Convert to fraction form
    18,257.32/27,380.22 = 5,108.68/x
  3. Step 3: Cross multiply
    18,257.32x = 27,380.22 × 5,108.68
  4. Step 4: Simplify right side
    18,257.32x = 139,876,782.31
  5. Step 5: Solve for x
    x = 139,876,782.31/18,257.32
  6. Step 6: Final answer
    x = 7,661.41

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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.