Home / 18,236.45-25,131.93-13,192.10

Finding the Fourth Proportional to 18,236.45, 25,131.93 and 13,192.10

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Solution

The fourth proportional to 18,236.45, 25,131.93 and 13,192.10 is: 18,180.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,236.45 : 25,131.93 = 13,192.10 : x
  2. Step 2: Convert to fraction form
    18,236.45/25,131.93 = 13,192.10/x
  3. Step 3: Cross multiply
    18,236.45x = 25,131.93 × 13,192.10
  4. Step 4: Simplify right side
    18,236.45x = 331,542,933.75
  5. Step 5: Solve for x
    x = 331,542,933.75/18,236.45
  6. Step 6: Final answer
    x = 18,180.23

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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.