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Finding the Fourth Proportional to 17,086.24, 25,620.58 and 7,721.18

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Solution

The fourth proportional to 17,086.24, 25,620.58 and 7,721.18 is: 11,577.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,086.24 : 25,620.58 = 7,721.18 : x
  2. Step 2: Convert to fraction form
    17,086.24/25,620.58 = 7,721.18/x
  3. Step 3: Cross multiply
    17,086.24x = 25,620.58 × 7,721.18
  4. Step 4: Simplify right side
    17,086.24x = 197,821,231.63
  5. Step 5: Solve for x
    x = 197,821,231.63/17,086.24
  6. Step 6: Final answer
    x = 11,577.81

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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.