Home / 8,161.50-12,243.12-2,612.86

Finding the Fourth Proportional to 8,161.50, 12,243.12 and 2,612.86

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Solution

The fourth proportional to 8,161.50, 12,243.12 and 2,612.86 is: 3,919.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161.50 : 12,243.12 = 2,612.86 : x
  2. Step 2: Convert to fraction form
    8,161.50/12,243.12 = 2,612.86/x
  3. Step 3: Cross multiply
    8,161.50x = 12,243.12 × 2,612.86
  4. Step 4: Simplify right side
    8,161.50x = 31,989,558.52
  5. Step 5: Solve for x
    x = 31,989,558.52/8,161.50
  6. Step 6: Final answer
    x = 3,919.57

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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.