Home / 8,161.36-12,240.42-3,999.58

Finding the Fourth Proportional to 8,161.36, 12,240.42 and 3,999.58

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Solution

The fourth proportional to 8,161.36, 12,240.42 and 3,999.58 is: 5,998.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.36 : 12,240.42 = 3,999.58 : x
  2. Step 2: Convert to fraction form
    8,161.36/12,240.42 = 3,999.58/x
  3. Step 3: Cross multiply
    8,161.36x = 12,240.42 × 3,999.58
  4. Step 4: Simplify right side
    8,161.36x = 48,956,539.02
  5. Step 5: Solve for x
    x = 48,956,539.02/8,161.36
  6. Step 6: Final answer
    x = 5,998.58

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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.