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Finding the Fourth Proportional to 18,934, 26,129.04 and 10,550.56

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Solution

The fourth proportional to 18,934, 26,129.04 and 10,550.56 is: 14,559.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934 : 26,129.04 = 10,550.56 : x
  2. Step 2: Convert to fraction form
    18,934/26,129.04 = 10,550.56/x
  3. Step 3: Cross multiply
    18,934x = 26,129.04 × 10,550.56
  4. Step 4: Simplify right side
    18,934x = 275,676,004.26
  5. Step 5: Solve for x
    x = 275,676,004.26/18,934
  6. Step 6: Final answer
    x = 14,559.84

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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.