Home / 18,704.88-28,055.64-6,220.86

Finding the Fourth Proportional to 18,704.88, 28,055.64 and 6,220.86

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Solution

The fourth proportional to 18,704.88, 28,055.64 and 6,220.86 is: 9,330.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,704.88 : 28,055.64 = 6,220.86 : x
  2. Step 2: Convert to fraction form
    18,704.88/28,055.64 = 6,220.86/x
  3. Step 3: Cross multiply
    18,704.88x = 28,055.64 × 6,220.86
  4. Step 4: Simplify right side
    18,704.88x = 174,530,208.65
  5. Step 5: Solve for x
    x = 174,530,208.65/18,704.88
  6. Step 6: Final answer
    x = 9,330.73

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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.