Home / 11,618.40-17,427.86-3,722.43

Finding the Fourth Proportional to 11,618.40, 17,427.86 and 3,722.43

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Solution

The fourth proportional to 11,618.40, 17,427.86 and 3,722.43 is: 5,583.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,618.40 : 17,427.86 = 3,722.43 : x
  2. Step 2: Convert to fraction form
    11,618.40/17,427.86 = 3,722.43/x
  3. Step 3: Cross multiply
    11,618.40x = 17,427.86 × 3,722.43
  4. Step 4: Simplify right side
    11,618.40x = 64,873,988.90
  5. Step 5: Solve for x
    x = 64,873,988.90/11,618.40
  6. Step 6: Final answer
    x = 5,583.73

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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.