Home / 8,273.20-12,388.20-6,530.80

Finding the Fourth Proportional to 8,273.20, 12,388.20 and 6,530.80

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Solution

The fourth proportional to 8,273.20, 12,388.20 and 6,530.80 is: 9,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,273.20 : 12,388.20 = 6,530.80 : x
  2. Step 2: Convert to fraction form
    8,273.20/12,388.20 = 6,530.80/x
  3. Step 3: Cross multiply
    8,273.20x = 12,388.20 × 6,530.80
  4. Step 4: Simplify right side
    8,273.20x = 80,904,856.56
  5. Step 5: Solve for x
    x = 80,904,856.56/8,273.20
  6. Step 6: Final answer
    x = 9,779.15

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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.