Home / 13,243.35-18,276.26-7,275.44

Finding the Fourth Proportional to 13,243.35, 18,276.26 and 7,275.44

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Solution

The fourth proportional to 13,243.35, 18,276.26 and 7,275.44 is: 10,040.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.35 : 18,276.26 = 7,275.44 : x
  2. Step 2: Convert to fraction form
    13,243.35/18,276.26 = 7,275.44/x
  3. Step 3: Cross multiply
    13,243.35x = 18,276.26 × 7,275.44
  4. Step 4: Simplify right side
    13,243.35x = 132,967,833.05
  5. Step 5: Solve for x
    x = 132,967,833.05/13,243.35
  6. Step 6: Final answer
    x = 10,040.35

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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.