Home / 6,625.12-9,940.20-4,157.20

Finding the Fourth Proportional to 6,625.12, 9,940.20 and 4,157.20

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Solution

The fourth proportional to 6,625.12, 9,940.20 and 4,157.20 is: 6,237.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,625.12 : 9,940.20 = 4,157.20 : x
  2. Step 2: Convert to fraction form
    6,625.12/9,940.20 = 4,157.20/x
  3. Step 3: Cross multiply
    6,625.12x = 9,940.20 × 4,157.20
  4. Step 4: Simplify right side
    6,625.12x = 41,323,399.44
  5. Step 5: Solve for x
    x = 41,323,399.44/6,625.12
  6. Step 6: Final answer
    x = 6,237.38

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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.