Home / 18,668.27-28,003.22-8,682.39

Finding the Fourth Proportional to 18,668.27, 28,003.22 and 8,682.39

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Solution

The fourth proportional to 18,668.27, 28,003.22 and 8,682.39 is: 13,023.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,668.27 : 28,003.22 = 8,682.39 : x
  2. Step 2: Convert to fraction form
    18,668.27/28,003.22 = 8,682.39/x
  3. Step 3: Cross multiply
    18,668.27x = 28,003.22 × 8,682.39
  4. Step 4: Simplify right side
    18,668.27x = 243,134,833.88
  5. Step 5: Solve for x
    x = 243,134,833.88/18,668.27
  6. Step 6: Final answer
    x = 13,023.97

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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.