Home / 13,906.14-19,190.25-7,937.65

Finding the Fourth Proportional to 13,906.14, 19,190.25 and 7,937.65

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Solution

The fourth proportional to 13,906.14, 19,190.25 and 7,937.65 is: 10,953.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,906.14 : 19,190.25 = 7,937.65 : x
  2. Step 2: Convert to fraction form
    13,906.14/19,190.25 = 7,937.65/x
  3. Step 3: Cross multiply
    13,906.14x = 19,190.25 × 7,937.65
  4. Step 4: Simplify right side
    13,906.14x = 152,325,487.91
  5. Step 5: Solve for x
    x = 152,325,487.91/13,906.14
  6. Step 6: Final answer
    x = 10,953.83

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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.