Home / 7,245.20-10,847.20-4,772.56

Finding the Fourth Proportional to 7,245.20, 10,847.20 and 4,772.56

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Solution

The fourth proportional to 7,245.20, 10,847.20 and 4,772.56 is: 7,145.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.20 : 10,847.20 = 4,772.56 : x
  2. Step 2: Convert to fraction form
    7,245.20/10,847.20 = 4,772.56/x
  3. Step 3: Cross multiply
    7,245.20x = 10,847.20 × 4,772.56
  4. Step 4: Simplify right side
    7,245.20x = 51,768,912.83
  5. Step 5: Solve for x
    x = 51,768,912.83/7,245.20
  6. Step 6: Final answer
    x = 7,145.27

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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.