Home / 8,262.56-12,390.60-3,330.80

Finding the Fourth Proportional to 8,262.56, 12,390.60 and 3,330.80

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Solution

The fourth proportional to 8,262.56, 12,390.60 and 3,330.80 is: 4,994.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,262.56 : 12,390.60 = 3,330.80 : x
  2. Step 2: Convert to fraction form
    8,262.56/12,390.60 = 3,330.80/x
  3. Step 3: Cross multiply
    8,262.56x = 12,390.60 × 3,330.80
  4. Step 4: Simplify right side
    8,262.56x = 41,270,610.48
  5. Step 5: Solve for x
    x = 41,270,610.48/8,262.56
  6. Step 6: Final answer
    x = 4,994.89

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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.