Home / 13,806.44-20,710.62-3,945.32

Finding the Fourth Proportional to 13,806.44, 20,710.62 and 3,945.32

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Solution

The fourth proportional to 13,806.44, 20,710.62 and 3,945.32 is: 5,918.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.44 : 20,710.62 = 3,945.32 : x
  2. Step 2: Convert to fraction form
    13,806.44/20,710.62 = 3,945.32/x
  3. Step 3: Cross multiply
    13,806.44x = 20,710.62 × 3,945.32
  4. Step 4: Simplify right side
    13,806.44x = 81,710,023.30
  5. Step 5: Solve for x
    x = 81,710,023.30/13,806.44
  6. Step 6: Final answer
    x = 5,918.25

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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.