Home / 10,631.18-15,936.43-5,083.09

Finding the Fourth Proportional to 10,631.18, 15,936.43 and 5,083.09

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Solution

The fourth proportional to 10,631.18, 15,936.43 and 5,083.09 is: 7,619.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,631.18 : 15,936.43 = 5,083.09 : x
  2. Step 2: Convert to fraction form
    10,631.18/15,936.43 = 5,083.09/x
  3. Step 3: Cross multiply
    10,631.18x = 15,936.43 × 5,083.09
  4. Step 4: Simplify right side
    10,631.18x = 81,006,202.87
  5. Step 5: Solve for x
    x = 81,006,202.87/10,631.18
  6. Step 6: Final answer
    x = 7,619.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.