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Finding the Fourth Proportional to 8,003.96, 11,999.82 and 6,612.92

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Solution

The fourth proportional to 8,003.96, 11,999.82 and 6,612.92 is: 9,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,003.96 : 11,999.82 = 6,612.92 : x
  2. Step 2: Convert to fraction form
    8,003.96/11,999.82 = 6,612.92/x
  3. Step 3: Cross multiply
    8,003.96x = 11,999.82 × 6,612.92
  4. Step 4: Simplify right side
    8,003.96x = 79,353,849.67
  5. Step 5: Solve for x
    x = 79,353,849.67/8,003.96
  6. Step 6: Final answer
    x = 9,914.32

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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.