Home / 18,933.75-26,129.12-10,550.79

Finding the Fourth Proportional to 18,933.75, 26,129.12 and 10,550.79

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Solution

The fourth proportional to 18,933.75, 26,129.12 and 10,550.79 is: 14,560.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.75 : 26,129.12 = 10,550.79 : x
  2. Step 2: Convert to fraction form
    18,933.75/26,129.12 = 10,550.79/x
  3. Step 3: Cross multiply
    18,933.75x = 26,129.12 × 10,550.79
  4. Step 4: Simplify right side
    18,933.75x = 275,682,805.25
  5. Step 5: Solve for x
    x = 275,682,805.25/18,933.75
  6. Step 6: Final answer
    x = 14,560.39

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1.5x scale

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.