Home / 7,618.20-11,427.30-3,234.20

Finding the Fourth Proportional to 7,618.20, 11,427.30 and 3,234.20

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Solution

The fourth proportional to 7,618.20, 11,427.30 and 3,234.20 is: 4,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.20 : 11,427.30 = 3,234.20 : x
  2. Step 2: Convert to fraction form
    7,618.20/11,427.30 = 3,234.20/x
  3. Step 3: Cross multiply
    7,618.20x = 11,427.30 × 3,234.20
  4. Step 4: Simplify right side
    7,618.20x = 36,958,173.66
  5. Step 5: Solve for x
    x = 36,958,173.66/7,618.20
  6. Step 6: Final answer
    x = 4,851.30

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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.