Home / 8,623.50-12,917.03-3,947.44

Finding the Fourth Proportional to 8,623.50, 12,917.03 and 3,947.44

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Solution

The fourth proportional to 8,623.50, 12,917.03 and 3,947.44 is: 5,912.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.50 : 12,917.03 = 3,947.44 : x
  2. Step 2: Convert to fraction form
    8,623.50/12,917.03 = 3,947.44/x
  3. Step 3: Cross multiply
    8,623.50x = 12,917.03 × 3,947.44
  4. Step 4: Simplify right side
    8,623.50x = 50,989,148.87
  5. Step 5: Solve for x
    x = 50,989,148.87/8,623.50
  6. Step 6: Final answer
    x = 5,912.81

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1.5x scale

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.