Home / 8,161.10-12,240.04-3,999.32

Finding the Fourth Proportional to 8,161.10, 12,240.04 and 3,999.32

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Solution

The fourth proportional to 8,161.10, 12,240.04 and 3,999.32 is: 5,998.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.10 : 12,240.04 = 3,999.32 : x
  2. Step 2: Convert to fraction form
    8,161.10/12,240.04 = 3,999.32/x
  3. Step 3: Cross multiply
    8,161.10x = 12,240.04 × 3,999.32
  4. Step 4: Simplify right side
    8,161.10x = 48,951,836.77
  5. Step 5: Solve for x
    x = 48,951,836.77/8,161.10
  6. Step 6: Final answer
    x = 5,998.19

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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.