Home / 9,391.24-12,960.11-5,142.48

Finding the Fourth Proportional to 9,391.24, 12,960.11 and 5,142.48

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Solution

The fourth proportional to 9,391.24, 12,960.11 and 5,142.48 is: 7,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.24 : 12,960.11 = 5,142.48 : x
  2. Step 2: Convert to fraction form
    9,391.24/12,960.11 = 5,142.48/x
  3. Step 3: Cross multiply
    9,391.24x = 12,960.11 × 5,142.48
  4. Step 4: Simplify right side
    9,391.24x = 66,647,106.47
  5. Step 5: Solve for x
    x = 66,647,106.47/9,391.24
  6. Step 6: Final answer
    x = 7,096.73

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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.