Home / 16,982.70-25,440.90-11,121.54

Finding the Fourth Proportional to 16,982.70, 25,440.90 and 11,121.54

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Solution

The fourth proportional to 16,982.70, 25,440.90 and 11,121.54 is: 16,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,982.70 : 25,440.90 = 11,121.54 : x
  2. Step 2: Convert to fraction form
    16,982.70/25,440.90 = 11,121.54/x
  3. Step 3: Cross multiply
    16,982.70x = 25,440.90 × 11,121.54
  4. Step 4: Simplify right side
    16,982.70x = 282,941,986.99
  5. Step 5: Solve for x
    x = 282,941,986.99/16,982.70
  6. Step 6: Final answer
    x = 16,660.60

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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.