Home / 18,664.48-27,976.88-6,972.64

Finding the Fourth Proportional to 18,664.48, 27,976.88 and 6,972.64

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Solution

The fourth proportional to 18,664.48, 27,976.88 and 6,972.64 is: 10,451.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.48 : 27,976.88 = 6,972.64 : x
  2. Step 2: Convert to fraction form
    18,664.48/27,976.88 = 6,972.64/x
  3. Step 3: Cross multiply
    18,664.48x = 27,976.88 × 6,972.64
  4. Step 4: Simplify right side
    18,664.48x = 195,072,712.56
  5. Step 5: Solve for x
    x = 195,072,712.56/18,664.48
  6. Step 6: Final answer
    x = 10,451.55

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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.