Home / 18,518.85-27,741.83-11,101.28

Finding the Fourth Proportional to 18,518.85, 27,741.83 and 11,101.28

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Solution

The fourth proportional to 18,518.85, 27,741.83 and 11,101.28 is: 16,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,518.85 : 27,741.83 = 11,101.28 : x
  2. Step 2: Convert to fraction form
    18,518.85/27,741.83 = 11,101.28/x
  3. Step 3: Cross multiply
    18,518.85x = 27,741.83 × 11,101.28
  4. Step 4: Simplify right side
    18,518.85x = 307,969,628.33
  5. Step 5: Solve for x
    x = 307,969,628.33/18,518.85
  6. Step 6: Final answer
    x = 16,630.06

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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.