Home / 16,906.80-25,358.40-5,220.12

Finding the Fourth Proportional to 16,906.80, 25,358.40 and 5,220.12

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Solution

The fourth proportional to 16,906.80, 25,358.40 and 5,220.12 is: 7,829.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,906.80 : 25,358.40 = 5,220.12 : x
  2. Step 2: Convert to fraction form
    16,906.80/25,358.40 = 5,220.12/x
  3. Step 3: Cross multiply
    16,906.80x = 25,358.40 × 5,220.12
  4. Step 4: Simplify right side
    16,906.80x = 132,373,891.01
  5. Step 5: Solve for x
    x = 132,373,891.01/16,906.80
  6. Step 6: Final answer
    x = 7,829.62

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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.