Home / 8,245.20-11,379.48-4,890.96

Finding the Fourth Proportional to 8,245.20, 11,379.48 and 4,890.96

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Solution

The fourth proportional to 8,245.20, 11,379.48 and 4,890.96 is: 6,750.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.20 : 11,379.48 = 4,890.96 : x
  2. Step 2: Convert to fraction form
    8,245.20/11,379.48 = 4,890.96/x
  3. Step 3: Cross multiply
    8,245.20x = 11,379.48 × 4,890.96
  4. Step 4: Simplify right side
    8,245.20x = 55,656,581.50
  5. Step 5: Solve for x
    x = 55,656,581.50/8,245.20
  6. Step 6: Final answer
    x = 6,750.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.