Home / 8,330.20-12,493.30-4,812.60

Finding the Fourth Proportional to 8,330.20, 12,493.30 and 4,812.60

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Solution

The fourth proportional to 8,330.20, 12,493.30 and 4,812.60 is: 7,217.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,330.20 : 12,493.30 = 4,812.60 : x
  2. Step 2: Convert to fraction form
    8,330.20/12,493.30 = 4,812.60/x
  3. Step 3: Cross multiply
    8,330.20x = 12,493.30 × 4,812.60
  4. Step 4: Simplify right side
    8,330.20x = 60,125,255.58
  5. Step 5: Solve for x
    x = 60,125,255.58/8,330.20
  6. Step 6: Final answer
    x = 7,217.74

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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.