Home / 18,414.31-27,588.45-11,188.33

Finding the Fourth Proportional to 18,414.31, 27,588.45 and 11,188.33

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Solution

The fourth proportional to 18,414.31, 27,588.45 and 11,188.33 is: 16,762.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.31 : 27,588.45 = 11,188.33 : x
  2. Step 2: Convert to fraction form
    18,414.31/27,588.45 = 11,188.33/x
  3. Step 3: Cross multiply
    18,414.31x = 27,588.45 × 11,188.33
  4. Step 4: Simplify right side
    18,414.31x = 308,668,592.84
  5. Step 5: Solve for x
    x = 308,668,592.84/18,414.31
  6. Step 6: Final answer
    x = 16,762.43

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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.