Home / 18,936-26,131.68-10,553.04

Finding the Fourth Proportional to 18,936, 26,131.68 and 10,553.04

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Solution

The fourth proportional to 18,936, 26,131.68 and 10,553.04 is: 14,563.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,936 : 26,131.68 = 10,553.04 : x
  2. Step 2: Convert to fraction form
    18,936/26,131.68 = 10,553.04/x
  3. Step 3: Cross multiply
    18,936x = 26,131.68 × 10,553.04
  4. Step 4: Simplify right side
    18,936x = 275,768,664.31
  5. Step 5: Solve for x
    x = 275,768,664.31/18,936
  6. Step 6: Final answer
    x = 14,563.20

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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.