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Finding the Fourth Proportional to 17,302.38, 25,955.39 and 7,940.80

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Solution

The fourth proportional to 17,302.38, 25,955.39 and 7,940.80 is: 11,912.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,302.38 : 25,955.39 = 7,940.80 : x
  2. Step 2: Convert to fraction form
    17,302.38/25,955.39 = 7,940.80/x
  3. Step 3: Cross multiply
    17,302.38x = 25,955.39 × 7,940.80
  4. Step 4: Simplify right side
    17,302.38x = 206,106,560.91
  5. Step 5: Solve for x
    x = 206,106,560.91/17,302.38
  6. Step 6: Final answer
    x = 11,912.04

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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.