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Finding the Fourth Proportional to 7,998.30, 11,997.45 and 4,295.44

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Solution

The fourth proportional to 7,998.30, 11,997.45 and 4,295.44 is: 6,443.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.30 : 11,997.45 = 4,295.44 : x
  2. Step 2: Convert to fraction form
    7,998.30/11,997.45 = 4,295.44/x
  3. Step 3: Cross multiply
    7,998.30x = 11,997.45 × 4,295.44
  4. Step 4: Simplify right side
    7,998.30x = 51,534,326.63
  5. Step 5: Solve for x
    x = 51,534,326.63/7,998.30
  6. Step 6: Final answer
    x = 6,443.16

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Half 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.