Home / 13,252.20-18,280.42-8,275.56

Finding the Fourth Proportional to 13,252.20, 18,280.42 and 8,275.56

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Solution

The fourth proportional to 13,252.20, 18,280.42 and 8,275.56 is: 11,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,252.20 : 18,280.42 = 8,275.56 : x
  2. Step 2: Convert to fraction form
    13,252.20/18,280.42 = 8,275.56/x
  3. Step 3: Cross multiply
    13,252.20x = 18,280.42 × 8,275.56
  4. Step 4: Simplify right side
    13,252.20x = 151,280,712.54
  5. Step 5: Solve for x
    x = 151,280,712.54/13,252.20
  6. Step 6: Final answer
    x = 11,415.52

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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.