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Finding the Fourth Proportional to 17,018.55, 25,520.04 and 9,119.82

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Solution

The fourth proportional to 17,018.55, 25,520.04 and 9,119.82 is: 13,675.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,018.55 : 25,520.04 = 9,119.82 : x
  2. Step 2: Convert to fraction form
    17,018.55/25,520.04 = 9,119.82/x
  3. Step 3: Cross multiply
    17,018.55x = 25,520.04 × 9,119.82
  4. Step 4: Simplify right side
    17,018.55x = 232,738,171.19
  5. Step 5: Solve for x
    x = 232,738,171.19/17,018.55
  6. Step 6: Final answer
    x = 13,675.56

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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.