Home / 19,645.13-27,105.57-11,579.11

Finding the Fourth Proportional to 19,645.13, 27,105.57 and 11,579.11

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Solution

The fourth proportional to 19,645.13, 27,105.57 and 11,579.11 is: 15,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.13 : 27,105.57 = 11,579.11 : x
  2. Step 2: Convert to fraction form
    19,645.13/27,105.57 = 11,579.11/x
  3. Step 3: Cross multiply
    19,645.13x = 27,105.57 × 11,579.11
  4. Step 4: Simplify right side
    19,645.13x = 313,858,308.88
  5. Step 5: Solve for x
    x = 313,858,308.88/19,645.13
  6. Step 6: Final answer
    x = 15,976.39

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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.