Home / 11,821.46-16,314.45-6,786.50

Finding the Fourth Proportional to 11,821.46, 16,314.45 and 6,786.50

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Solution

The fourth proportional to 11,821.46, 16,314.45 and 6,786.50 is: 9,365.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.46 : 16,314.45 = 6,786.50 : x
  2. Step 2: Convert to fraction form
    11,821.46/16,314.45 = 6,786.50/x
  3. Step 3: Cross multiply
    11,821.46x = 16,314.45 × 6,786.50
  4. Step 4: Simplify right side
    11,821.46x = 110,718,014.93
  5. Step 5: Solve for x
    x = 110,718,014.93/11,821.46
  6. Step 6: Final answer
    x = 9,365.85

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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.