Home / 8,110.97-12,161.53-3,946.78

Finding the Fourth Proportional to 8,110.97, 12,161.53 and 3,946.78

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Solution

The fourth proportional to 8,110.97, 12,161.53 and 3,946.78 is: 5,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.97 : 12,161.53 = 3,946.78 : x
  2. Step 2: Convert to fraction form
    8,110.97/12,161.53 = 3,946.78/x
  3. Step 3: Cross multiply
    8,110.97x = 12,161.53 × 3,946.78
  4. Step 4: Simplify right side
    8,110.97x = 47,998,802.83
  5. Step 5: Solve for x
    x = 47,998,802.83/8,110.97
  6. Step 6: Final answer
    x = 5,917.77

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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.