Home / 13,480.74-20,204.91-11,906.10

Finding the Fourth Proportional to 13,480.74, 20,204.91 and 11,906.10

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Solution

The fourth proportional to 13,480.74, 20,204.91 and 11,906.10 is: 17,844.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.74 : 20,204.91 = 11,906.10 : x
  2. Step 2: Convert to fraction form
    13,480.74/20,204.91 = 11,906.10/x
  3. Step 3: Cross multiply
    13,480.74x = 20,204.91 × 11,906.10
  4. Step 4: Simplify right side
    13,480.74x = 240,561,678.95
  5. Step 5: Solve for x
    x = 240,561,678.95/13,480.74
  6. Step 6: Final answer
    x = 17,844.84

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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.