Home / 18,845.33-25,999.38-11,186.91

Finding the Fourth Proportional to 18,845.33, 25,999.38 and 11,186.91

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Solution

The fourth proportional to 18,845.33, 25,999.38 and 11,186.91 is: 15,433.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.33 : 25,999.38 = 11,186.91 : x
  2. Step 2: Convert to fraction form
    18,845.33/25,999.38 = 11,186.91/x
  3. Step 3: Cross multiply
    18,845.33x = 25,999.38 × 11,186.91
  4. Step 4: Simplify right side
    18,845.33x = 290,852,724.12
  5. Step 5: Solve for x
    x = 290,852,724.12/18,845.33
  6. Step 6: Final answer
    x = 15,433.68

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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.