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Finding the Fourth Proportional to 17,137.20, 25,689.60 and 10,122.60

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Solution

The fourth proportional to 17,137.20, 25,689.60 and 10,122.60 is: 15,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,137.20 : 25,689.60 = 10,122.60 : x
  2. Step 2: Convert to fraction form
    17,137.20/25,689.60 = 10,122.60/x
  3. Step 3: Cross multiply
    17,137.20x = 25,689.60 × 10,122.60
  4. Step 4: Simplify right side
    17,137.20x = 260,045,544.96
  5. Step 5: Solve for x
    x = 260,045,544.96/17,137.20
  6. Step 6: Final answer
    x = 15,174.33

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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.