Home / 7,638.72-11,450.08-3,198.92

Finding the Fourth Proportional to 7,638.72, 11,450.08 and 3,198.92

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Solution

The fourth proportional to 7,638.72, 11,450.08 and 3,198.92 is: 4,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.72 : 11,450.08 = 3,198.92 : x
  2. Step 2: Convert to fraction form
    7,638.72/11,450.08 = 3,198.92/x
  3. Step 3: Cross multiply
    7,638.72x = 11,450.08 × 3,198.92
  4. Step 4: Simplify right side
    7,638.72x = 36,627,889.91
  5. Step 5: Solve for x
    x = 36,627,889.91/7,638.72
  6. Step 6: Final answer
    x = 4,795.03

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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.