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Finding the Fourth Proportional to 17,256.98, 25,871.40 and 8,939.43

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Solution

The fourth proportional to 17,256.98, 25,871.40 and 8,939.43 is: 13,401.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,256.98 : 25,871.40 = 8,939.43 : x
  2. Step 2: Convert to fraction form
    17,256.98/25,871.40 = 8,939.43/x
  3. Step 3: Cross multiply
    17,256.98x = 25,871.40 × 8,939.43
  4. Step 4: Simplify right side
    17,256.98x = 231,275,569.30
  5. Step 5: Solve for x
    x = 231,275,569.30/17,256.98
  6. Step 6: Final answer
    x = 13,401.85

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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.