Home / 11,937.86-17,906.77-3,172.77

Finding the Fourth Proportional to 11,937.86, 17,906.77 and 3,172.77

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Solution

The fourth proportional to 11,937.86, 17,906.77 and 3,172.77 is: 4,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,937.86 : 17,906.77 = 3,172.77 : x
  2. Step 2: Convert to fraction form
    11,937.86/17,906.77 = 3,172.77/x
  3. Step 3: Cross multiply
    11,937.86x = 17,906.77 × 3,172.77
  4. Step 4: Simplify right side
    11,937.86x = 56,814,046.79
  5. Step 5: Solve for x
    x = 56,814,046.79/11,937.86
  6. Step 6: Final answer
    x = 4,759.15

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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.