Home / 7,662.20-11,493.30-3,280.10

Finding the Fourth Proportional to 7,662.20, 11,493.30 and 3,280.10

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Solution

The fourth proportional to 7,662.20, 11,493.30 and 3,280.10 is: 4,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,662.20 : 11,493.30 = 3,280.10 : x
  2. Step 2: Convert to fraction form
    7,662.20/11,493.30 = 3,280.10/x
  3. Step 3: Cross multiply
    7,662.20x = 11,493.30 × 3,280.10
  4. Step 4: Simplify right side
    7,662.20x = 37,699,173.33
  5. Step 5: Solve for x
    x = 37,699,173.33/7,662.20
  6. Step 6: Final answer
    x = 4,920.15

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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.