Home / 18,777.68-28,170.62-5,450.85

Finding the Fourth Proportional to 18,777.68, 28,170.62 and 5,450.85

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Solution

The fourth proportional to 18,777.68, 28,170.62 and 5,450.85 is: 8,177.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,777.68 : 28,170.62 = 5,450.85 : x
  2. Step 2: Convert to fraction form
    18,777.68/28,170.62 = 5,450.85/x
  3. Step 3: Cross multiply
    18,777.68x = 28,170.62 × 5,450.85
  4. Step 4: Simplify right side
    18,777.68x = 153,553,796.77
  5. Step 5: Solve for x
    x = 153,553,796.77/18,777.68
  6. Step 6: Final answer
    x = 8,177.47

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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.