Home / 7,245.36-10,872.90-4,650.12

Finding the Fourth Proportional to 7,245.36, 10,872.90 and 4,650.12

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Solution

The fourth proportional to 7,245.36, 10,872.90 and 4,650.12 is: 6,978.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.36 : 10,872.90 = 4,650.12 : x
  2. Step 2: Convert to fraction form
    7,245.36/10,872.90 = 4,650.12/x
  3. Step 3: Cross multiply
    7,245.36x = 10,872.90 × 4,650.12
  4. Step 4: Simplify right side
    7,245.36x = 50,560,289.75
  5. Step 5: Solve for x
    x = 50,560,289.75/7,245.36
  6. Step 6: Final answer
    x = 6,978.30

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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.