Home / 8,311.37-12,470.69-3,927.65

Finding the Fourth Proportional to 8,311.37, 12,470.69 and 3,927.65

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Solution

The fourth proportional to 8,311.37, 12,470.69 and 3,927.65 is: 5,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.37 : 12,470.69 = 3,927.65 : x
  2. Step 2: Convert to fraction form
    8,311.37/12,470.69 = 3,927.65/x
  3. Step 3: Cross multiply
    8,311.37x = 12,470.69 × 3,927.65
  4. Step 4: Simplify right side
    8,311.37x = 48,980,453.04
  5. Step 5: Solve for x
    x = 48,980,453.04/8,311.37
  6. Step 6: Final answer
    x = 5,893.19

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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.