Home / 18,965.09-28,392.53-11,043.43

Finding the Fourth Proportional to 18,965.09, 28,392.53 and 11,043.43

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Solution

The fourth proportional to 18,965.09, 28,392.53 and 11,043.43 is: 16,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.09 : 28,392.53 = 11,043.43 : x
  2. Step 2: Convert to fraction form
    18,965.09/28,392.53 = 11,043.43/x
  3. Step 3: Cross multiply
    18,965.09x = 28,392.53 × 11,043.43
  4. Step 4: Simplify right side
    18,965.09x = 313,550,791.38
  5. Step 5: Solve for x
    x = 313,550,791.38/18,965.09
  6. Step 6: Final answer
    x = 16,533.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.