Home / 7,150.24-9,867.12-3,963.76

Finding the Fourth Proportional to 7,150.24, 9,867.12 and 3,963.76

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Solution

The fourth proportional to 7,150.24, 9,867.12 and 3,963.76 is: 5,469.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,150.24 : 9,867.12 = 3,963.76 : x
  2. Step 2: Convert to fraction form
    7,150.24/9,867.12 = 3,963.76/x
  3. Step 3: Cross multiply
    7,150.24x = 9,867.12 × 3,963.76
  4. Step 4: Simplify right side
    7,150.24x = 39,110,895.57
  5. Step 5: Solve for x
    x = 39,110,895.57/7,150.24
  6. Step 6: Final answer
    x = 5,469.87

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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.