Home / 18,409.59-25,400.82-10,855.33

Finding the Fourth Proportional to 18,409.59, 25,400.82 and 10,855.33

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Solution

The fourth proportional to 18,409.59, 25,400.82 and 10,855.33 is: 14,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,409.59 : 25,400.82 = 10,855.33 : x
  2. Step 2: Convert to fraction form
    18,409.59/25,400.82 = 10,855.33/x
  3. Step 3: Cross multiply
    18,409.59x = 25,400.82 × 10,855.33
  4. Step 4: Simplify right side
    18,409.59x = 275,734,260.58
  5. Step 5: Solve for x
    x = 275,734,260.58/18,409.59
  6. Step 6: Final answer
    x = 14,977.75

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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.