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Finding the Fourth Proportional to 17,998.65, 26,968.82 and 10,971.09

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Solution

The fourth proportional to 17,998.65, 26,968.82 and 10,971.09 is: 16,438.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.65 : 26,968.82 = 10,971.09 : x
  2. Step 2: Convert to fraction form
    17,998.65/26,968.82 = 10,971.09/x
  3. Step 3: Cross multiply
    17,998.65x = 26,968.82 × 10,971.09
  4. Step 4: Simplify right side
    17,998.65x = 295,877,296.56
  5. Step 5: Solve for x
    x = 295,877,296.56/17,998.65
  6. Step 6: Final answer
    x = 16,438.86

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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.