Home / 11,207.10-16,847.10-7,942.80

Finding the Fourth Proportional to 11,207.10, 16,847.10 and 7,942.80

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Solution

The fourth proportional to 11,207.10, 16,847.10 and 7,942.80 is: 11,940.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,207.10 : 16,847.10 = 7,942.80 : x
  2. Step 2: Convert to fraction form
    11,207.10/16,847.10 = 7,942.80/x
  3. Step 3: Cross multiply
    11,207.10x = 16,847.10 × 7,942.80
  4. Step 4: Simplify right side
    11,207.10x = 133,813,145.88
  5. Step 5: Solve for x
    x = 133,813,145.88/11,207.10
  6. Step 6: Final answer
    x = 11,940.03

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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.