Home / 8,311.30-11,469.96-4,775.65

Finding the Fourth Proportional to 8,311.30, 11,469.96 and 4,775.65

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Solution

The fourth proportional to 8,311.30, 11,469.96 and 4,775.65 is: 6,590.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.30 : 11,469.96 = 4,775.65 : x
  2. Step 2: Convert to fraction form
    8,311.30/11,469.96 = 4,775.65/x
  3. Step 3: Cross multiply
    8,311.30x = 11,469.96 × 4,775.65
  4. Step 4: Simplify right side
    8,311.30x = 54,776,514.47
  5. Step 5: Solve for x
    x = 54,776,514.47/8,311.30
  6. Step 6: Final answer
    x = 6,590.61

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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.