Home / 18,481.80-25,495.99-12,105.63

Finding the Fourth Proportional to 18,481.80, 25,495.99 and 12,105.63

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Solution

The fourth proportional to 18,481.80, 25,495.99 and 12,105.63 is: 16,699.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,481.80 : 25,495.99 = 12,105.63 : x
  2. Step 2: Convert to fraction form
    18,481.80/25,495.99 = 12,105.63/x
  3. Step 3: Cross multiply
    18,481.80x = 25,495.99 × 12,105.63
  4. Step 4: Simplify right side
    18,481.80x = 308,645,147.98
  5. Step 5: Solve for x
    x = 308,645,147.98/18,481.80
  6. Step 6: Final answer
    x = 16,699.95

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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.