Home / 16,839.20-25,202.64-12,669.12

Finding the Fourth Proportional to 16,839.20, 25,202.64 and 12,669.12

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Solution

The fourth proportional to 16,839.20, 25,202.64 and 12,669.12 is: 18,961.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,839.20 : 25,202.64 = 12,669.12 : x
  2. Step 2: Convert to fraction form
    16,839.20/25,202.64 = 12,669.12/x
  3. Step 3: Cross multiply
    16,839.20x = 25,202.64 × 12,669.12
  4. Step 4: Simplify right side
    16,839.20x = 319,295,270.48
  5. Step 5: Solve for x
    x = 319,295,270.48/16,839.20
  6. Step 6: Final answer
    x = 18,961.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.