Home / 18,269.20-25,205.34-11,892.88

Finding the Fourth Proportional to 18,269.20, 25,205.34 and 11,892.88

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Solution

The fourth proportional to 18,269.20, 25,205.34 and 11,892.88 is: 16,408.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,269.20 : 25,205.34 = 11,892.88 : x
  2. Step 2: Convert to fraction form
    18,269.20/25,205.34 = 11,892.88/x
  3. Step 3: Cross multiply
    18,269.20x = 25,205.34 × 11,892.88
  4. Step 4: Simplify right side
    18,269.20x = 299,764,083.98
  5. Step 5: Solve for x
    x = 299,764,083.98/18,269.20
  6. Step 6: Final answer
    x = 16,408.17

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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.