Home / 17,375.55-23,978.25-9,417.75

Finding the Fourth Proportional to 17,375.55, 23,978.25 and 9,417.75

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Solution

The fourth proportional to 17,375.55, 23,978.25 and 9,417.75 is: 12,996.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,375.55 : 23,978.25 = 9,417.75 : x
  2. Step 2: Convert to fraction form
    17,375.55/23,978.25 = 9,417.75/x
  3. Step 3: Cross multiply
    17,375.55x = 23,978.25 × 9,417.75
  4. Step 4: Simplify right side
    17,375.55x = 225,821,163.94
  5. Step 5: Solve for x
    x = 225,821,163.94/17,375.55
  6. Step 6: Final answer
    x = 12,996.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.