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Finding the Fourth Proportional to 17,089.12, 25,640.70 and 7,726.60

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Solution

The fourth proportional to 17,089.12, 25,640.70 and 7,726.60 is: 11,593.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,089.12 : 25,640.70 = 7,726.60 : x
  2. Step 2: Convert to fraction form
    17,089.12/25,640.70 = 7,726.60/x
  3. Step 3: Cross multiply
    17,089.12x = 25,640.70 × 7,726.60
  4. Step 4: Simplify right side
    17,089.12x = 198,115,432.62
  5. Step 5: Solve for x
    x = 198,115,432.62/17,089.12
  6. Step 6: Final answer
    x = 11,593.07

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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.