Home / 12,272.59-16,936.18-6,821.66

Finding the Fourth Proportional to 12,272.59, 16,936.18 and 6,821.66

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Solution

The fourth proportional to 12,272.59, 16,936.18 and 6,821.66 is: 9,413.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.59 : 16,936.18 = 6,821.66 : x
  2. Step 2: Convert to fraction form
    12,272.59/16,936.18 = 6,821.66/x
  3. Step 3: Cross multiply
    12,272.59x = 16,936.18 × 6,821.66
  4. Step 4: Simplify right side
    12,272.59x = 115,532,759.92
  5. Step 5: Solve for x
    x = 115,532,759.92/12,272.59
  6. Step 6: Final answer
    x = 9,413.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.