Home / 17,991.41-26,988.91-5,511.29

Finding the Fourth Proportional to 17,991.41, 26,988.91 and 5,511.29

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Solution

The fourth proportional to 17,991.41, 26,988.91 and 5,511.29 is: 8,267.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.41 : 26,988.91 = 5,511.29 : x
  2. Step 2: Convert to fraction form
    17,991.41/26,988.91 = 5,511.29/x
  3. Step 3: Cross multiply
    17,991.41x = 26,988.91 × 5,511.29
  4. Step 4: Simplify right side
    17,991.41x = 148,743,561.07
  5. Step 5: Solve for x
    x = 148,743,561.07/17,991.41
  6. Step 6: Final answer
    x = 8,267.48

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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.