Home / 10,219.20-15,325.44-3,199.20

Finding the Fourth Proportional to 10,219.20, 15,325.44 and 3,199.20

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Solution

The fourth proportional to 10,219.20, 15,325.44 and 3,199.20 is: 4,797.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,219.20 : 15,325.44 = 3,199.20 : x
  2. Step 2: Convert to fraction form
    10,219.20/15,325.44 = 3,199.20/x
  3. Step 3: Cross multiply
    10,219.20x = 15,325.44 × 3,199.20
  4. Step 4: Simplify right side
    10,219.20x = 49,029,147.65
  5. Step 5: Solve for x
    x = 49,029,147.65/10,219.20
  6. Step 6: Final answer
    x = 4,797.75

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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.