Home / 19,659.05-27,131.73-11,701.30

Finding the Fourth Proportional to 19,659.05, 27,131.73 and 11,701.30

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Solution

The fourth proportional to 19,659.05, 27,131.73 and 11,701.30 is: 16,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.05 : 27,131.73 = 11,701.30 : x
  2. Step 2: Convert to fraction form
    19,659.05/27,131.73 = 11,701.30/x
  3. Step 3: Cross multiply
    19,659.05x = 27,131.73 × 11,701.30
  4. Step 4: Simplify right side
    19,659.05x = 317,476,512.25
  5. Step 5: Solve for x
    x = 317,476,512.25/19,659.05
  6. Step 6: Final answer
    x = 16,149.13

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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.