Home / 18,600.96-25,613.16-16,078.56

Finding the Fourth Proportional to 18,600.96, 25,613.16 and 16,078.56

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Solution

The fourth proportional to 18,600.96, 25,613.16 and 16,078.56 is: 22,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,600.96 : 25,613.16 = 16,078.56 : x
  2. Step 2: Convert to fraction form
    18,600.96/25,613.16 = 16,078.56/x
  3. Step 3: Cross multiply
    18,600.96x = 25,613.16 × 16,078.56
  4. Step 4: Simplify right side
    18,600.96x = 411,822,729.85
  5. Step 5: Solve for x
    x = 411,822,729.85/18,600.96
  6. Step 6: Final answer
    x = 22,139.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.