Home / 12,450.88-18,676.80-3,217.12

Finding the Fourth Proportional to 12,450.88, 18,676.80 and 3,217.12

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Solution

The fourth proportional to 12,450.88, 18,676.80 and 3,217.12 is: 4,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,450.88 : 18,676.80 = 3,217.12 : x
  2. Step 2: Convert to fraction form
    12,450.88/18,676.80 = 3,217.12/x
  3. Step 3: Cross multiply
    12,450.88x = 18,676.80 × 3,217.12
  4. Step 4: Simplify right side
    12,450.88x = 60,085,506.82
  5. Step 5: Solve for x
    x = 60,085,506.82/12,450.88
  6. Step 6: Final answer
    x = 4,825.80

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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.