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Finding the Fourth Proportional to 17,125.26, 25,687.89 and 5,438.49

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Solution

The fourth proportional to 17,125.26, 25,687.89 and 5,438.49 is: 8,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.26 : 25,687.89 = 5,438.49 : x
  2. Step 2: Convert to fraction form
    17,125.26/25,687.89 = 5,438.49/x
  3. Step 3: Cross multiply
    17,125.26x = 25,687.89 × 5,438.49
  4. Step 4: Simplify right side
    17,125.26x = 139,703,332.89
  5. Step 5: Solve for x
    x = 139,703,332.89/17,125.26
  6. Step 6: Final answer
    x = 8,157.74

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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.