Home / 19,619.38-27,078.33-11,666.14

Finding the Fourth Proportional to 19,619.38, 27,078.33 and 11,666.14

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Solution

The fourth proportional to 19,619.38, 27,078.33 and 11,666.14 is: 16,101.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.38 : 27,078.33 = 11,666.14 : x
  2. Step 2: Convert to fraction form
    19,619.38/27,078.33 = 11,666.14/x
  3. Step 3: Cross multiply
    19,619.38x = 27,078.33 × 11,666.14
  4. Step 4: Simplify right side
    19,619.38x = 315,899,588.75
  5. Step 5: Solve for x
    x = 315,899,588.75/19,619.38
  6. Step 6: Final answer
    x = 16,101.41

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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.