Home / 8,310.13-12,470.69-3,927.89

Finding the Fourth Proportional to 8,310.13, 12,470.69 and 3,927.89

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Solution

The fourth proportional to 8,310.13, 12,470.69 and 3,927.89 is: 5,894.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,310.13 : 12,470.69 = 3,927.89 : x
  2. Step 2: Convert to fraction form
    8,310.13/12,470.69 = 3,927.89/x
  3. Step 3: Cross multiply
    8,310.13x = 12,470.69 × 3,927.89
  4. Step 4: Simplify right side
    8,310.13x = 48,983,539.54
  5. Step 5: Solve for x
    x = 48,983,539.54/8,310.13
  6. Step 6: Final answer
    x = 5,894.44

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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.