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Finding the Fourth Proportional to 17,045.20, 25,562.76 and 7,679.80

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Solution

The fourth proportional to 17,045.20, 25,562.76 and 7,679.80 is: 11,517.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,045.20 : 25,562.76 = 7,679.80 : x
  2. Step 2: Convert to fraction form
    17,045.20/25,562.76 = 7,679.80/x
  3. Step 3: Cross multiply
    17,045.20x = 25,562.76 × 7,679.80
  4. Step 4: Simplify right side
    17,045.20x = 196,316,884.25
  5. Step 5: Solve for x
    x = 196,316,884.25/17,045.20
  6. Step 6: Final answer
    x = 11,517.43

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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.