Home / 13,240.44-18,271.96-7,272.25

Finding the Fourth Proportional to 13,240.44, 18,271.96 and 7,272.25

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Solution

The fourth proportional to 13,240.44, 18,271.96 and 7,272.25 is: 10,035.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.44 : 18,271.96 = 7,272.25 : x
  2. Step 2: Convert to fraction form
    13,240.44/18,271.96 = 7,272.25/x
  3. Step 3: Cross multiply
    13,240.44x = 18,271.96 × 7,272.25
  4. Step 4: Simplify right side
    13,240.44x = 132,878,197.25
  5. Step 5: Solve for x
    x = 132,878,197.25/13,240.44
  6. Step 6: Final answer
    x = 10,035.78

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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.