Home / 7,842.14-11,763.27-1,998.75

Finding the Fourth Proportional to 7,842.14, 11,763.27 and 1,998.75

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Solution

The fourth proportional to 7,842.14, 11,763.27 and 1,998.75 is: 2,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,842.14 : 11,763.27 = 1,998.75 : x
  2. Step 2: Convert to fraction form
    7,842.14/11,763.27 = 1,998.75/x
  3. Step 3: Cross multiply
    7,842.14x = 11,763.27 × 1,998.75
  4. Step 4: Simplify right side
    7,842.14x = 23,511,835.91
  5. Step 5: Solve for x
    x = 23,511,835.91/7,842.14
  6. Step 6: Final answer
    x = 2,998.14

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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.