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Finding the Fourth Proportional to 17,855.40, 26,782.96 and 5,375.37

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Solution

The fourth proportional to 17,855.40, 26,782.96 and 5,375.37 is: 8,063.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,855.40 : 26,782.96 = 5,375.37 : x
  2. Step 2: Convert to fraction form
    17,855.40/26,782.96 = 5,375.37/x
  3. Step 3: Cross multiply
    17,855.40x = 26,782.96 × 5,375.37
  4. Step 4: Simplify right side
    17,855.40x = 143,968,319.70
  5. Step 5: Solve for x
    x = 143,968,319.70/17,855.40
  6. Step 6: Final answer
    x = 8,063.01

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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.