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Finding the Fourth Proportional to 17,104.20, 25,613.10 and 12,697.80

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Solution

The fourth proportional to 17,104.20, 25,613.10 and 12,697.80 is: 19,014.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,104.20 : 25,613.10 = 12,697.80 : x
  2. Step 2: Convert to fraction form
    17,104.20/25,613.10 = 12,697.80/x
  3. Step 3: Cross multiply
    17,104.20x = 25,613.10 × 12,697.80
  4. Step 4: Simplify right side
    17,104.20x = 325,230,021.18
  5. Step 5: Solve for x
    x = 325,230,021.18/17,104.20
  6. Step 6: Final answer
    x = 19,014.63

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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.