Home / 13,804.36-20,705.10-3,943

Finding the Fourth Proportional to 13,804.36, 20,705.10 and 3,943

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Solution

The fourth proportional to 13,804.36, 20,705.10 and 3,943 is: 5,914.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,804.36 : 20,705.10 = 3,943 : x
  2. Step 2: Convert to fraction form
    13,804.36/20,705.10 = 3,943/x
  3. Step 3: Cross multiply
    13,804.36x = 20,705.10 × 3,943
  4. Step 4: Simplify right side
    13,804.36x = 81,640,209.30
  5. Step 5: Solve for x
    x = 81,640,209.30/13,804.36
  6. Step 6: Final answer
    x = 5,914.09

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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.