Home / 11,205.27-15,464.34-6,729.21

Finding the Fourth Proportional to 11,205.27, 15,464.34 and 6,729.21

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Solution

The fourth proportional to 11,205.27, 15,464.34 and 6,729.21 is: 9,286.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.27 : 15,464.34 = 6,729.21 : x
  2. Step 2: Convert to fraction form
    11,205.27/15,464.34 = 6,729.21/x
  3. Step 3: Cross multiply
    11,205.27x = 15,464.34 × 6,729.21
  4. Step 4: Simplify right side
    11,205.27x = 104,062,791.37
  5. Step 5: Solve for x
    x = 104,062,791.37/11,205.27
  6. Step 6: Final answer
    x = 9,286.95

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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.