Home / 13,172.12-19,763.36-5,771.39

Finding the Fourth Proportional to 13,172.12, 19,763.36 and 5,771.39

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Solution

The fourth proportional to 13,172.12, 19,763.36 and 5,771.39 is: 8,659.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.12 : 19,763.36 = 5,771.39 : x
  2. Step 2: Convert to fraction form
    13,172.12/19,763.36 = 5,771.39/x
  3. Step 3: Cross multiply
    13,172.12x = 19,763.36 × 5,771.39
  4. Step 4: Simplify right side
    13,172.12x = 114,061,930.60
  5. Step 5: Solve for x
    x = 114,061,930.60/13,172.12
  6. Step 6: Final answer
    x = 8,659.35

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.