Home / 7,976.34-11,002.46-5,142.66

Finding the Fourth Proportional to 7,976.34, 11,002.46 and 5,142.66

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Solution

The fourth proportional to 7,976.34, 11,002.46 and 5,142.66 is: 7,093.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.34 : 11,002.46 = 5,142.66 : x
  2. Step 2: Convert to fraction form
    7,976.34/11,002.46 = 5,142.66/x
  3. Step 3: Cross multiply
    7,976.34x = 11,002.46 × 5,142.66
  4. Step 4: Simplify right side
    7,976.34x = 56,581,910.94
  5. Step 5: Solve for x
    x = 56,581,910.94/7,976.34
  6. Step 6: Final answer
    x = 7,093.72

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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.