Home / 12,919.62-17,829.09-8,450.94

Finding the Fourth Proportional to 12,919.62, 17,829.09 and 8,450.94

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Solution

The fourth proportional to 12,919.62, 17,829.09 and 8,450.94 is: 11,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919.62 : 17,829.09 = 8,450.94 : x
  2. Step 2: Convert to fraction form
    12,919.62/17,829.09 = 8,450.94/x
  3. Step 3: Cross multiply
    12,919.62x = 17,829.09 × 8,450.94
  4. Step 4: Simplify right side
    12,919.62x = 150,672,569.84
  5. Step 5: Solve for x
    x = 150,672,569.84/12,919.62
  6. Step 6: Final answer
    x = 11,662.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.