Home / 18,125.15-27,183.51-4,978.58

Finding the Fourth Proportional to 18,125.15, 27,183.51 and 4,978.58

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Solution

The fourth proportional to 18,125.15, 27,183.51 and 4,978.58 is: 7,466.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.15 : 27,183.51 = 4,978.58 : x
  2. Step 2: Convert to fraction form
    18,125.15/27,183.51 = 4,978.58/x
  3. Step 3: Cross multiply
    18,125.15x = 27,183.51 × 4,978.58
  4. Step 4: Simplify right side
    18,125.15x = 135,335,279.22
  5. Step 5: Solve for x
    x = 135,335,279.22/18,125.15
  6. Step 6: Final answer
    x = 7,466.71

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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.