Home / 12,568.17-18,863.19-8,190.54

Finding the Fourth Proportional to 12,568.17, 18,863.19 and 8,190.54

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Solution

The fourth proportional to 12,568.17, 18,863.19 and 8,190.54 is: 12,292.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.17 : 18,863.19 = 8,190.54 : x
  2. Step 2: Convert to fraction form
    12,568.17/18,863.19 = 8,190.54/x
  3. Step 3: Cross multiply
    12,568.17x = 18,863.19 × 8,190.54
  4. Step 4: Simplify right side
    12,568.17x = 154,499,712.22
  5. Step 5: Solve for x
    x = 154,499,712.22/12,568.17
  6. Step 6: Final answer
    x = 12,292.94

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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.