Home / 18,418.36-25,409.76-12,832.60

Finding the Fourth Proportional to 18,418.36, 25,409.76 and 12,832.60

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Solution

The fourth proportional to 18,418.36, 25,409.76 and 12,832.60 is: 17,703.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.36 : 25,409.76 = 12,832.60 : x
  2. Step 2: Convert to fraction form
    18,418.36/25,409.76 = 12,832.60/x
  3. Step 3: Cross multiply
    18,418.36x = 25,409.76 × 12,832.60
  4. Step 4: Simplify right side
    18,418.36x = 326,073,286.18
  5. Step 5: Solve for x
    x = 326,073,286.18/18,418.36
  6. Step 6: Final answer
    x = 17,703.71

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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.