Home / 18,861.13-26,028.48-11,791.63

Finding the Fourth Proportional to 18,861.13, 26,028.48 and 11,791.63

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Solution

The fourth proportional to 18,861.13, 26,028.48 and 11,791.63 is: 16,272.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.13 : 26,028.48 = 11,791.63 : x
  2. Step 2: Convert to fraction form
    18,861.13/26,028.48 = 11,791.63/x
  3. Step 3: Cross multiply
    18,861.13x = 26,028.48 × 11,791.63
  4. Step 4: Simplify right side
    18,861.13x = 306,918,205.62
  5. Step 5: Solve for x
    x = 306,918,205.62/18,861.13
  6. Step 6: Final answer
    x = 16,272.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.