Home / 16,936-23,372.40-9,861.28

Finding the Fourth Proportional to 16,936, 23,372.40 and 9,861.28

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Solution

The fourth proportional to 16,936, 23,372.40 and 9,861.28 is: 13,608.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,936 : 23,372.40 = 9,861.28 : x
  2. Step 2: Convert to fraction form
    16,936/23,372.40 = 9,861.28/x
  3. Step 3: Cross multiply
    16,936x = 23,372.40 × 9,861.28
  4. Step 4: Simplify right side
    16,936x = 230,481,780.67
  5. Step 5: Solve for x
    x = 230,481,780.67/16,936
  6. Step 6: Final answer
    x = 13,608.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.