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Finding the Fourth Proportional to 17,469.98, 26,205.78 and 4,991.78

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Solution

The fourth proportional to 17,469.98, 26,205.78 and 4,991.78 is: 7,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,469.98 : 26,205.78 = 4,991.78 : x
  2. Step 2: Convert to fraction form
    17,469.98/26,205.78 = 4,991.78/x
  3. Step 3: Cross multiply
    17,469.98x = 26,205.78 × 4,991.78
  4. Step 4: Simplify right side
    17,469.98x = 130,813,397.24
  5. Step 5: Solve for x
    x = 130,813,397.24/17,469.98
  6. Step 6: Final answer
    x = 7,487.90

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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.