Home / 10,687.39-16,032.81-3,291.85

Finding the Fourth Proportional to 10,687.39, 16,032.81 and 3,291.85

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Solution

The fourth proportional to 10,687.39, 16,032.81 and 3,291.85 is: 4,938.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.39 : 16,032.81 = 3,291.85 : x
  2. Step 2: Convert to fraction form
    10,687.39/16,032.81 = 3,291.85/x
  3. Step 3: Cross multiply
    10,687.39x = 16,032.81 × 3,291.85
  4. Step 4: Simplify right side
    10,687.39x = 52,777,553.17
  5. Step 5: Solve for x
    x = 52,777,553.17/10,687.39
  6. Step 6: Final answer
    x = 4,938.30

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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.