Home / 18,650.21-25,719.05-11,933.39

Finding the Fourth Proportional to 18,650.21, 25,719.05 and 11,933.39

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Solution

The fourth proportional to 18,650.21, 25,719.05 and 11,933.39 is: 16,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.21 : 25,719.05 = 11,933.39 : x
  2. Step 2: Convert to fraction form
    18,650.21/25,719.05 = 11,933.39/x
  3. Step 3: Cross multiply
    18,650.21x = 25,719.05 × 11,933.39
  4. Step 4: Simplify right side
    18,650.21x = 306,915,265.82
  5. Step 5: Solve for x
    x = 306,915,265.82/18,650.21
  6. Step 6: Final answer
    x = 16,456.40

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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.