Home / 11,220.91-16,831.36-3,012.91

Finding the Fourth Proportional to 11,220.91, 16,831.36 and 3,012.91

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Solution

The fourth proportional to 11,220.91, 16,831.36 and 3,012.91 is: 4,519.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.91 : 16,831.36 = 3,012.91 : x
  2. Step 2: Convert to fraction form
    11,220.91/16,831.36 = 3,012.91/x
  3. Step 3: Cross multiply
    11,220.91x = 16,831.36 × 3,012.91
  4. Step 4: Simplify right side
    11,220.91x = 50,711,372.86
  5. Step 5: Solve for x
    x = 50,711,372.86/11,220.91
  6. Step 6: Final answer
    x = 4,519.36

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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.