Home / 16,778.30-25,170.48-6,912.09

Finding the Fourth Proportional to 16,778.30, 25,170.48 and 6,912.09

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Solution

The fourth proportional to 16,778.30, 25,170.48 and 6,912.09 is: 10,369.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,778.30 : 25,170.48 = 6,912.09 : x
  2. Step 2: Convert to fraction form
    16,778.30/25,170.48 = 6,912.09/x
  3. Step 3: Cross multiply
    16,778.30x = 25,170.48 × 6,912.09
  4. Step 4: Simplify right side
    16,778.30x = 173,980,623.10
  5. Step 5: Solve for x
    x = 173,980,623.10/16,778.30
  6. Step 6: Final answer
    x = 10,369.39

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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.