Home / 11,780.62-17,670.92-3,994.90

Finding the Fourth Proportional to 11,780.62, 17,670.92 and 3,994.90

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Solution

The fourth proportional to 11,780.62, 17,670.92 and 3,994.90 is: 5,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,780.62 : 17,670.92 = 3,994.90 : x
  2. Step 2: Convert to fraction form
    11,780.62/17,670.92 = 3,994.90/x
  3. Step 3: Cross multiply
    11,780.62x = 17,670.92 × 3,994.90
  4. Step 4: Simplify right side
    11,780.62x = 70,593,558.31
  5. Step 5: Solve for x
    x = 70,593,558.31/11,780.62
  6. Step 6: Final answer
    x = 5,992.35

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.