Home / 18,388.20-25,365.13-11,662.26

Finding the Fourth Proportional to 18,388.20, 25,365.13 and 11,662.26

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Solution

The fourth proportional to 18,388.20, 25,365.13 and 11,662.26 is: 16,087.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.20 : 25,365.13 = 11,662.26 : x
  2. Step 2: Convert to fraction form
    18,388.20/25,365.13 = 11,662.26/x
  3. Step 3: Cross multiply
    18,388.20x = 25,365.13 × 11,662.26
  4. Step 4: Simplify right side
    18,388.20x = 295,814,825.00
  5. Step 5: Solve for x
    x = 295,814,825.00/18,388.20
  6. Step 6: Final answer
    x = 16,087.21

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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.