Home / 10,137.44-13,989.20-5,660.31

Finding the Fourth Proportional to 10,137.44, 13,989.20 and 5,660.31

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Solution

The fourth proportional to 10,137.44, 13,989.20 and 5,660.31 is: 7,810.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.44 : 13,989.20 = 5,660.31 : x
  2. Step 2: Convert to fraction form
    10,137.44/13,989.20 = 5,660.31/x
  3. Step 3: Cross multiply
    10,137.44x = 13,989.20 × 5,660.31
  4. Step 4: Simplify right side
    10,137.44x = 79,183,208.65
  5. Step 5: Solve for x
    x = 79,183,208.65/10,137.44
  6. Step 6: Final answer
    x = 7,810.97

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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.