Home / 7,977.05-11,963.38-4,223.74

Finding the Fourth Proportional to 7,977.05, 11,963.38 and 4,223.74

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Solution

The fourth proportional to 7,977.05, 11,963.38 and 4,223.74 is: 6,334.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.05 : 11,963.38 = 4,223.74 : x
  2. Step 2: Convert to fraction form
    7,977.05/11,963.38 = 4,223.74/x
  3. Step 3: Cross multiply
    7,977.05x = 11,963.38 × 4,223.74
  4. Step 4: Simplify right side
    7,977.05x = 50,530,211.04
  5. Step 5: Solve for x
    x = 50,530,211.04/7,977.05
  6. Step 6: Final answer
    x = 6,334.45

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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.