Home / 15,212.20-22,821.70-5,351.80

Finding the Fourth Proportional to 15,212.20, 22,821.70 and 5,351.80

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Solution

The fourth proportional to 15,212.20, 22,821.70 and 5,351.80 is: 8,028.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.20 : 22,821.70 = 5,351.80 : x
  2. Step 2: Convert to fraction form
    15,212.20/22,821.70 = 5,351.80/x
  3. Step 3: Cross multiply
    15,212.20x = 22,821.70 × 5,351.80
  4. Step 4: Simplify right side
    15,212.20x = 122,137,174.06
  5. Step 5: Solve for x
    x = 122,137,174.06/15,212.20
  6. Step 6: Final answer
    x = 8,028.90

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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.