Home / 12,318.44-16,999.50-6,729.56

Finding the Fourth Proportional to 12,318.44, 16,999.50 and 6,729.56

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Solution

The fourth proportional to 12,318.44, 16,999.50 and 6,729.56 is: 9,286.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,318.44 : 16,999.50 = 6,729.56 : x
  2. Step 2: Convert to fraction form
    12,318.44/16,999.50 = 6,729.56/x
  3. Step 3: Cross multiply
    12,318.44x = 16,999.50 × 6,729.56
  4. Step 4: Simplify right side
    12,318.44x = 114,399,155.22
  5. Step 5: Solve for x
    x = 114,399,155.22/12,318.44
  6. Step 6: Final answer
    x = 9,286.82

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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.