Home / 19,965.91-27,553.10-11,013.18

Finding the Fourth Proportional to 19,965.91, 27,553.10 and 11,013.18

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Solution

The fourth proportional to 19,965.91, 27,553.10 and 11,013.18 is: 15,198.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.91 : 27,553.10 = 11,013.18 : x
  2. Step 2: Convert to fraction form
    19,965.91/27,553.10 = 11,013.18/x
  3. Step 3: Cross multiply
    19,965.91x = 27,553.10 × 11,013.18
  4. Step 4: Simplify right side
    19,965.91x = 303,447,249.86
  5. Step 5: Solve for x
    x = 303,447,249.86/19,965.91
  6. Step 6: Final answer
    x = 15,198.27

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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.