Home / 19,121.97-26,385.23-11,951.04

Finding the Fourth Proportional to 19,121.97, 26,385.23 and 11,951.04

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Solution

The fourth proportional to 19,121.97, 26,385.23 and 11,951.04 is: 16,490.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.97 : 26,385.23 = 11,951.04 : x
  2. Step 2: Convert to fraction form
    19,121.97/26,385.23 = 11,951.04/x
  3. Step 3: Cross multiply
    19,121.97x = 26,385.23 × 11,951.04
  4. Step 4: Simplify right side
    19,121.97x = 315,330,879.38
  5. Step 5: Solve for x
    x = 315,330,879.38/19,121.97
  6. Step 6: Final answer
    x = 16,490.50

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Half scale
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Double scale
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Similar ratio
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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.