Home / 7,976.71-11,964.15-2,133.77

Finding the Fourth Proportional to 7,976.71, 11,964.15 and 2,133.77

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Solution

The fourth proportional to 7,976.71, 11,964.15 and 2,133.77 is: 3,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.71 : 11,964.15 = 2,133.77 : x
  2. Step 2: Convert to fraction form
    7,976.71/11,964.15 = 2,133.77/x
  3. Step 3: Cross multiply
    7,976.71x = 11,964.15 × 2,133.77
  4. Step 4: Simplify right side
    7,976.71x = 25,528,744.35
  5. Step 5: Solve for x
    x = 25,528,744.35/7,976.71
  6. Step 6: Final answer
    x = 3,200.41

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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.