Home / 8,631.14-12,943.51-3,083

Finding the Fourth Proportional to 8,631.14, 12,943.51 and 3,083

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Solution

The fourth proportional to 8,631.14, 12,943.51 and 3,083 is: 4,623.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.14 : 12,943.51 = 3,083 : x
  2. Step 2: Convert to fraction form
    8,631.14/12,943.51 = 3,083/x
  3. Step 3: Cross multiply
    8,631.14x = 12,943.51 × 3,083
  4. Step 4: Simplify right side
    8,631.14x = 39,904,841.33
  5. Step 5: Solve for x
    x = 39,904,841.33/8,631.14
  6. Step 6: Final answer
    x = 4,623.36

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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.