Home / 11,220.75-16,831.13-3,012.75

Finding the Fourth Proportional to 11,220.75, 16,831.13 and 3,012.75

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Solution

The fourth proportional to 11,220.75, 16,831.13 and 3,012.75 is: 4,519.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.75 : 16,831.13 = 3,012.75 : x
  2. Step 2: Convert to fraction form
    11,220.75/16,831.13 = 3,012.75/x
  3. Step 3: Cross multiply
    11,220.75x = 16,831.13 × 3,012.75
  4. Step 4: Simplify right side
    11,220.75x = 50,707,971.84
  5. Step 5: Solve for x
    x = 50,707,971.84/11,220.75
  6. Step 6: Final answer
    x = 4,519.13

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.