Home / 18,447.12-25,456.28-10,380.60

Finding the Fourth Proportional to 18,447.12, 25,456.28 and 10,380.60

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Solution

The fourth proportional to 18,447.12, 25,456.28 and 10,380.60 is: 14,324.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,447.12 : 25,456.28 = 10,380.60 : x
  2. Step 2: Convert to fraction form
    18,447.12/25,456.28 = 10,380.60/x
  3. Step 3: Cross multiply
    18,447.12x = 25,456.28 × 10,380.60
  4. Step 4: Simplify right side
    18,447.12x = 264,251,408.27
  5. Step 5: Solve for x
    x = 264,251,408.27/18,447.12
  6. Step 6: Final answer
    x = 14,324.81

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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.