Home / 19,198.38-28,760.64-11,781.18

Finding the Fourth Proportional to 19,198.38, 28,760.64 and 11,781.18

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Solution

The fourth proportional to 19,198.38, 28,760.64 and 11,781.18 is: 17,649.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,198.38 : 28,760.64 = 11,781.18 : x
  2. Step 2: Convert to fraction form
    19,198.38/28,760.64 = 11,781.18/x
  3. Step 3: Cross multiply
    19,198.38x = 28,760.64 × 11,781.18
  4. Step 4: Simplify right side
    19,198.38x = 338,834,276.76
  5. Step 5: Solve for x
    x = 338,834,276.76/19,198.38
  6. Step 6: Final answer
    x = 17,649.11

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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.