Home / 13,309.40-19,964.10-3,448.60

Finding the Fourth Proportional to 13,309.40, 19,964.10 and 3,448.60

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Solution

The fourth proportional to 13,309.40, 19,964.10 and 3,448.60 is: 5,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,309.40 : 19,964.10 = 3,448.60 : x
  2. Step 2: Convert to fraction form
    13,309.40/19,964.10 = 3,448.60/x
  3. Step 3: Cross multiply
    13,309.40x = 19,964.10 × 3,448.60
  4. Step 4: Simplify right side
    13,309.40x = 68,848,195.26
  5. Step 5: Solve for x
    x = 68,848,195.26/13,309.40
  6. Step 6: Final answer
    x = 5,172.90

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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.