Home / 11,443.20-15,791.04-6,725.76

Finding the Fourth Proportional to 11,443.20, 15,791.04 and 6,725.76

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Solution

The fourth proportional to 11,443.20, 15,791.04 and 6,725.76 is: 9,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,443.20 : 15,791.04 = 6,725.76 : x
  2. Step 2: Convert to fraction form
    11,443.20/15,791.04 = 6,725.76/x
  3. Step 3: Cross multiply
    11,443.20x = 15,791.04 × 6,725.76
  4. Step 4: Simplify right side
    11,443.20x = 106,206,745.19
  5. Step 5: Solve for x
    x = 106,206,745.19/11,443.20
  6. Step 6: Final answer
    x = 9,281.21

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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.