Home / 19,189.38-28,747.14-11,772.18

Finding the Fourth Proportional to 19,189.38, 28,747.14 and 11,772.18

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Solution

The fourth proportional to 19,189.38, 28,747.14 and 11,772.18 is: 17,635.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.38 : 28,747.14 = 11,772.18 : x
  2. Step 2: Convert to fraction form
    19,189.38/28,747.14 = 11,772.18/x
  3. Step 3: Cross multiply
    19,189.38x = 28,747.14 × 11,772.18
  4. Step 4: Simplify right side
    19,189.38x = 338,416,506.57
  5. Step 5: Solve for x
    x = 338,416,506.57/19,189.38
  6. Step 6: Final answer
    x = 17,635.61

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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.