Home / 17,991.35-26,988.82-5,511.23

Finding the Fourth Proportional to 17,991.35, 26,988.82 and 5,511.23

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Solution

The fourth proportional to 17,991.35, 26,988.82 and 5,511.23 is: 8,267.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.35 : 26,988.82 = 5,511.23 : x
  2. Step 2: Convert to fraction form
    17,991.35/26,988.82 = 5,511.23/x
  3. Step 3: Cross multiply
    17,991.35x = 26,988.82 × 5,511.23
  4. Step 4: Simplify right side
    17,991.35x = 148,741,431.95
  5. Step 5: Solve for x
    x = 148,741,431.95/17,991.35
  6. Step 6: Final answer
    x = 8,267.39

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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.