Home / 13,844.50-20,775.39-5,636.50

Finding the Fourth Proportional to 13,844.50, 20,775.39 and 5,636.50

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Solution

The fourth proportional to 13,844.50, 20,775.39 and 5,636.50 is: 8,458.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.50 : 20,775.39 = 5,636.50 : x
  2. Step 2: Convert to fraction form
    13,844.50/20,775.39 = 5,636.50/x
  3. Step 3: Cross multiply
    13,844.50x = 20,775.39 × 5,636.50
  4. Step 4: Simplify right side
    13,844.50x = 117,100,485.74
  5. Step 5: Solve for x
    x = 117,100,485.74/13,844.50
  6. Step 6: Final answer
    x = 8,458.27

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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.