Home / 11,221.16-16,831.73-4,200.89

Finding the Fourth Proportional to 11,221.16, 16,831.73 and 4,200.89

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Solution

The fourth proportional to 11,221.16, 16,831.73 and 4,200.89 is: 6,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.16 : 16,831.73 = 4,200.89 : x
  2. Step 2: Convert to fraction form
    11,221.16/16,831.73 = 4,200.89/x
  3. Step 3: Cross multiply
    11,221.16x = 16,831.73 × 4,200.89
  4. Step 4: Simplify right side
    11,221.16x = 70,708,172.58
  5. Step 5: Solve for x
    x = 70,708,172.58/11,221.16
  6. Step 6: Final answer
    x = 6,301.33

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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.