Home / 19,684.08-27,161.64-11,183.16

Finding the Fourth Proportional to 19,684.08, 27,161.64 and 11,183.16

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Solution

The fourth proportional to 19,684.08, 27,161.64 and 11,183.16 is: 15,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,684.08 : 27,161.64 = 11,183.16 : x
  2. Step 2: Convert to fraction form
    19,684.08/27,161.64 = 11,183.16/x
  3. Step 3: Cross multiply
    19,684.08x = 27,161.64 × 11,183.16
  4. Step 4: Simplify right side
    19,684.08x = 303,752,965.98
  5. Step 5: Solve for x
    x = 303,752,965.98/19,684.08
  6. Step 6: Final answer
    x = 15,431.40

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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.