Home / 18,468.18-25,496.52-12,198.78

Finding the Fourth Proportional to 18,468.18, 25,496.52 and 12,198.78

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Solution

The fourth proportional to 18,468.18, 25,496.52 and 12,198.78 is: 16,841.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.18 : 25,496.52 = 12,198.78 : x
  2. Step 2: Convert to fraction form
    18,468.18/25,496.52 = 12,198.78/x
  3. Step 3: Cross multiply
    18,468.18x = 25,496.52 × 12,198.78
  4. Step 4: Simplify right side
    18,468.18x = 311,026,438.25
  5. Step 5: Solve for x
    x = 311,026,438.25/18,468.18
  6. Step 6: Final answer
    x = 16,841.21

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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.