Home / 8,115.96-12,161.34-6,162.24

Finding the Fourth Proportional to 8,115.96, 12,161.34 and 6,162.24

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Solution

The fourth proportional to 8,115.96, 12,161.34 and 6,162.24 is: 9,233.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.96 : 12,161.34 = 6,162.24 : x
  2. Step 2: Convert to fraction form
    8,115.96/12,161.34 = 6,162.24/x
  3. Step 3: Cross multiply
    8,115.96x = 12,161.34 × 6,162.24
  4. Step 4: Simplify right side
    8,115.96x = 74,941,095.80
  5. Step 5: Solve for x
    x = 74,941,095.80/8,115.96
  6. Step 6: Final answer
    x = 9,233.79

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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.