Home / 7,638.21-11,450.78-3,476.73

Finding the Fourth Proportional to 7,638.21, 11,450.78 and 3,476.73

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Solution

The fourth proportional to 7,638.21, 11,450.78 and 3,476.73 is: 5,212.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638.21 : 11,450.78 = 3,476.73 : x
  2. Step 2: Convert to fraction form
    7,638.21/11,450.78 = 3,476.73/x
  3. Step 3: Cross multiply
    7,638.21x = 11,450.78 × 3,476.73
  4. Step 4: Simplify right side
    7,638.21x = 39,811,224.34
  5. Step 5: Solve for x
    x = 39,811,224.34/7,638.21
  6. Step 6: Final answer
    x = 5,212.12

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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.