Home / 12,539.23-18,696.74-12,194.78

Finding the Fourth Proportional to 12,539.23, 18,696.74 and 12,194.78

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Solution

The fourth proportional to 12,539.23, 18,696.74 and 12,194.78 is: 18,183.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.23 : 18,696.74 = 12,194.78 : x
  2. Step 2: Convert to fraction form
    12,539.23/18,696.74 = 12,194.78/x
  3. Step 3: Cross multiply
    12,539.23x = 18,696.74 × 12,194.78
  4. Step 4: Simplify right side
    12,539.23x = 228,002,476.56
  5. Step 5: Solve for x
    x = 228,002,476.56/12,539.23
  6. Step 6: Final answer
    x = 18,183.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.