Home / 18,418.07-25,414.61-10,458.60

Finding the Fourth Proportional to 18,418.07, 25,414.61 and 10,458.60

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Solution

The fourth proportional to 18,418.07, 25,414.61 and 10,458.60 is: 14,431.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.07 : 25,414.61 = 10,458.60 : x
  2. Step 2: Convert to fraction form
    18,418.07/25,414.61 = 10,458.60/x
  3. Step 3: Cross multiply
    18,418.07x = 25,414.61 × 10,458.60
  4. Step 4: Simplify right side
    18,418.07x = 265,801,187.85
  5. Step 5: Solve for x
    x = 265,801,187.85/18,418.07
  6. Step 6: Final answer
    x = 14,431.55

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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.