Home / 18,965.09-28,446.56-5,817.42

Finding the Fourth Proportional to 18,965.09, 28,446.56 and 5,817.42

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Solution

The fourth proportional to 18,965.09, 28,446.56 and 5,817.42 is: 8,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,965.09 : 28,446.56 = 5,817.42 : x
  2. Step 2: Convert to fraction form
    18,965.09/28,446.56 = 5,817.42/x
  3. Step 3: Cross multiply
    18,965.09x = 28,446.56 × 5,817.42
  4. Step 4: Simplify right side
    18,965.09x = 165,485,557.99
  5. Step 5: Solve for x
    x = 165,485,557.99/18,965.09
  6. Step 6: Final answer
    x = 8,725.80

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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.