Home / 16,912.20-25,392.60-13,218.60

Finding the Fourth Proportional to 16,912.20, 25,392.60 and 13,218.60

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Solution

The fourth proportional to 16,912.20, 25,392.60 and 13,218.60 is: 19,846.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.20 : 25,392.60 = 13,218.60 : x
  2. Step 2: Convert to fraction form
    16,912.20/25,392.60 = 13,218.60/x
  3. Step 3: Cross multiply
    16,912.20x = 25,392.60 × 13,218.60
  4. Step 4: Simplify right side
    16,912.20x = 335,654,622.36
  5. Step 5: Solve for x
    x = 335,654,622.36/16,912.20
  6. Step 6: Final answer
    x = 19,846.89

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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.