Home / 8,260.56-12,387.60-3,328.80

Finding the Fourth Proportional to 8,260.56, 12,387.60 and 3,328.80

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Solution

The fourth proportional to 8,260.56, 12,387.60 and 3,328.80 is: 4,991.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.56 : 12,387.60 = 3,328.80 : x
  2. Step 2: Convert to fraction form
    8,260.56/12,387.60 = 3,328.80/x
  3. Step 3: Cross multiply
    8,260.56x = 12,387.60 × 3,328.80
  4. Step 4: Simplify right side
    8,260.56x = 41,235,842.88
  5. Step 5: Solve for x
    x = 41,235,842.88/8,260.56
  6. Step 6: Final answer
    x = 4,991.89

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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.