Home / 18,208.20-25,125.78-10,249.80

Finding the Fourth Proportional to 18,208.20, 25,125.78 and 10,249.80

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Solution

The fourth proportional to 18,208.20, 25,125.78 and 10,249.80 is: 14,143.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,208.20 : 25,125.78 = 10,249.80 : x
  2. Step 2: Convert to fraction form
    18,208.20/25,125.78 = 10,249.80/x
  3. Step 3: Cross multiply
    18,208.20x = 25,125.78 × 10,249.80
  4. Step 4: Simplify right side
    18,208.20x = 257,534,219.84
  5. Step 5: Solve for x
    x = 257,534,219.84/18,208.20
  6. Step 6: Final answer
    x = 14,143.86

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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.