Home / 13,170.36-18,176.33-7,202.90

Finding the Fourth Proportional to 13,170.36, 18,176.33 and 7,202.90

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Solution

The fourth proportional to 13,170.36, 18,176.33 and 7,202.90 is: 9,940.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,170.36 : 18,176.33 = 7,202.90 : x
  2. Step 2: Convert to fraction form
    13,170.36/18,176.33 = 7,202.90/x
  3. Step 3: Cross multiply
    13,170.36x = 18,176.33 × 7,202.90
  4. Step 4: Simplify right side
    13,170.36x = 130,922,287.36
  5. Step 5: Solve for x
    x = 130,922,287.36/13,170.36
  6. Step 6: Final answer
    x = 9,940.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.