Home / 18,529.77-27,801.78-11,139.33

Finding the Fourth Proportional to 18,529.77, 27,801.78 and 11,139.33

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Solution

The fourth proportional to 18,529.77, 27,801.78 and 11,139.33 is: 16,713.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529.77 : 27,801.78 = 11,139.33 : x
  2. Step 2: Convert to fraction form
    18,529.77/27,801.78 = 11,139.33/x
  3. Step 3: Cross multiply
    18,529.77x = 27,801.78 × 11,139.33
  4. Step 4: Simplify right side
    18,529.77x = 309,693,202.01
  5. Step 5: Solve for x
    x = 309,693,202.01/18,529.77
  6. Step 6: Final answer
    x = 16,713.28

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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.