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Finding the Fourth Proportional to 17,126.85, 25,689.91 and 7,892.85

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Solution

The fourth proportional to 17,126.85, 25,689.91 and 7,892.85 is: 11,839.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,126.85 : 25,689.91 = 7,892.85 : x
  2. Step 2: Convert to fraction form
    17,126.85/25,689.91 = 7,892.85/x
  3. Step 3: Cross multiply
    17,126.85x = 25,689.91 × 7,892.85
  4. Step 4: Simplify right side
    17,126.85x = 202,766,606.14
  5. Step 5: Solve for x
    x = 202,766,606.14/17,126.85
  6. Step 6: Final answer
    x = 11,839.11

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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.