Home / 8,218.76-12,325.44-3,287.12

Finding the Fourth Proportional to 8,218.76, 12,325.44 and 3,287.12

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Solution

The fourth proportional to 8,218.76, 12,325.44 and 3,287.12 is: 4,929.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.76 : 12,325.44 = 3,287.12 : x
  2. Step 2: Convert to fraction form
    8,218.76/12,325.44 = 3,287.12/x
  3. Step 3: Cross multiply
    8,218.76x = 12,325.44 × 3,287.12
  4. Step 4: Simplify right side
    8,218.76x = 40,515,200.33
  5. Step 5: Solve for x
    x = 40,515,200.33/8,218.76
  6. Step 6: Final answer
    x = 4,929.60

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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.