Home / 10,839.38-16,253.31-4,991

Finding the Fourth Proportional to 10,839.38, 16,253.31 and 4,991

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Solution

The fourth proportional to 10,839.38, 16,253.31 and 4,991 is: 7,483.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.38 : 16,253.31 = 4,991 : x
  2. Step 2: Convert to fraction form
    10,839.38/16,253.31 = 4,991/x
  3. Step 3: Cross multiply
    10,839.38x = 16,253.31 × 4,991
  4. Step 4: Simplify right side
    10,839.38x = 81,120,270.21
  5. Step 5: Solve for x
    x = 81,120,270.21/10,839.38
  6. Step 6: Final answer
    x = 7,483.85

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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.