Home / 18,789.18-28,183.77-4,937.82

Finding the Fourth Proportional to 18,789.18, 28,183.77 and 4,937.82

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Solution

The fourth proportional to 18,789.18, 28,183.77 and 4,937.82 is: 7,406.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.18 : 28,183.77 = 4,937.82 : x
  2. Step 2: Convert to fraction form
    18,789.18/28,183.77 = 4,937.82/x
  3. Step 3: Cross multiply
    18,789.18x = 28,183.77 × 4,937.82
  4. Step 4: Simplify right side
    18,789.18x = 139,166,383.18
  5. Step 5: Solve for x
    x = 139,166,383.18/18,789.18
  6. Step 6: Final answer
    x = 7,406.73

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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.