Home / 18,386.82-27,568.14-12,127.74

Finding the Fourth Proportional to 18,386.82, 27,568.14 and 12,127.74

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Solution

The fourth proportional to 18,386.82, 27,568.14 and 12,127.74 is: 18,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.82 : 27,568.14 = 12,127.74 : x
  2. Step 2: Convert to fraction form
    18,386.82/27,568.14 = 12,127.74/x
  3. Step 3: Cross multiply
    18,386.82x = 27,568.14 × 12,127.74
  4. Step 4: Simplify right side
    18,386.82x = 334,339,234.20
  5. Step 5: Solve for x
    x = 334,339,234.20/18,386.82
  6. Step 6: Final answer
    x = 18,183.64

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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.