Home / 8,327.31-12,490.68-2,087.38

Finding the Fourth Proportional to 8,327.31, 12,490.68 and 2,087.38

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Solution

The fourth proportional to 8,327.31, 12,490.68 and 2,087.38 is: 3,131.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,327.31 : 12,490.68 = 2,087.38 : x
  2. Step 2: Convert to fraction form
    8,327.31/12,490.68 = 2,087.38/x
  3. Step 3: Cross multiply
    8,327.31x = 12,490.68 × 2,087.38
  4. Step 4: Simplify right side
    8,327.31x = 26,072,795.62
  5. Step 5: Solve for x
    x = 26,072,795.62/8,327.31
  6. Step 6: Final answer
    x = 3,131.00

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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.