Home / 11,226.92-15,480.28-7,188.44

Finding the Fourth Proportional to 11,226.92, 15,480.28 and 7,188.44

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Solution

The fourth proportional to 11,226.92, 15,480.28 and 7,188.44 is: 9,911.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,226.92 : 15,480.28 = 7,188.44 : x
  2. Step 2: Convert to fraction form
    11,226.92/15,480.28 = 7,188.44/x
  3. Step 3: Cross multiply
    11,226.92x = 15,480.28 × 7,188.44
  4. Step 4: Simplify right side
    11,226.92x = 111,279,063.96
  5. Step 5: Solve for x
    x = 111,279,063.96/11,226.92
  6. Step 6: Final answer
    x = 9,911.81

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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.