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Finding the Fourth Proportional to 17,273.10, 25,910.07 and 12,918.21

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Solution

The fourth proportional to 17,273.10, 25,910.07 and 12,918.21 is: 19,377.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,273.10 : 25,910.07 = 12,918.21 : x
  2. Step 2: Convert to fraction form
    17,273.10/25,910.07 = 12,918.21/x
  3. Step 3: Cross multiply
    17,273.10x = 25,910.07 × 12,918.21
  4. Step 4: Simplify right side
    17,273.10x = 334,711,725.37
  5. Step 5: Solve for x
    x = 334,711,725.37/17,273.10
  6. Step 6: Final answer
    x = 19,377.63

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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.