Home / 7,989.39-11,976.66-3,827.34

Finding the Fourth Proportional to 7,989.39, 11,976.66 and 3,827.34

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Solution

The fourth proportional to 7,989.39, 11,976.66 and 3,827.34 is: 5,737.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.39 : 11,976.66 = 3,827.34 : x
  2. Step 2: Convert to fraction form
    7,989.39/11,976.66 = 3,827.34/x
  3. Step 3: Cross multiply
    7,989.39x = 11,976.66 × 3,827.34
  4. Step 4: Simplify right side
    7,989.39x = 45,838,749.88
  5. Step 5: Solve for x
    x = 45,838,749.88/7,989.39
  6. Step 6: Final answer
    x = 5,737.45

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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.