Home / 16,906.20-25,345.92-8,578.56

Finding the Fourth Proportional to 16,906.20, 25,345.92 and 8,578.56

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Solution

The fourth proportional to 16,906.20, 25,345.92 and 8,578.56 is: 12,861.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906.20 : 25,345.92 = 8,578.56 : x
  2. Step 2: Convert to fraction form
    16,906.20/25,345.92 = 8,578.56/x
  3. Step 3: Cross multiply
    16,906.20x = 25,345.92 × 8,578.56
  4. Step 4: Simplify right side
    16,906.20x = 217,431,495.48
  5. Step 5: Solve for x
    x = 217,431,495.48/16,906.20
  6. Step 6: Final answer
    x = 12,861.05

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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.