Home / 8,193.20-12,282.60-4,902.80

Finding the Fourth Proportional to 8,193.20, 12,282.60 and 4,902.80

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Solution

The fourth proportional to 8,193.20, 12,282.60 and 4,902.80 is: 7,349.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,193.20 : 12,282.60 = 4,902.80 : x
  2. Step 2: Convert to fraction form
    8,193.20/12,282.60 = 4,902.80/x
  3. Step 3: Cross multiply
    8,193.20x = 12,282.60 × 4,902.80
  4. Step 4: Simplify right side
    8,193.20x = 60,219,131.28
  5. Step 5: Solve for x
    x = 60,219,131.28/8,193.20
  6. Step 6: Final answer
    x = 7,349.89

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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.