Home / 18,338.63-25,322.81-11,636.15

Finding the Fourth Proportional to 18,338.63, 25,322.81 and 11,636.15

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Solution

The fourth proportional to 18,338.63, 25,322.81 and 11,636.15 is: 16,067.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.63 : 25,322.81 = 11,636.15 : x
  2. Step 2: Convert to fraction form
    18,338.63/25,322.81 = 11,636.15/x
  3. Step 3: Cross multiply
    18,338.63x = 25,322.81 × 11,636.15
  4. Step 4: Simplify right side
    18,338.63x = 294,659,830.79
  5. Step 5: Solve for x
    x = 294,659,830.79/18,338.63
  6. Step 6: Final answer
    x = 16,067.72

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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.