Home / 11,409.24-15,745.92-8,225.16

Finding the Fourth Proportional to 11,409.24, 15,745.92 and 8,225.16

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Solution

The fourth proportional to 11,409.24, 15,745.92 and 8,225.16 is: 11,351.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,409.24 : 15,745.92 = 8,225.16 : x
  2. Step 2: Convert to fraction form
    11,409.24/15,745.92 = 8,225.16/x
  3. Step 3: Cross multiply
    11,409.24x = 15,745.92 × 8,225.16
  4. Step 4: Simplify right side
    11,409.24x = 129,512,711.35
  5. Step 5: Solve for x
    x = 129,512,711.35/11,409.24
  6. Step 6: Final answer
    x = 11,351.56

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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.