Home / 18,732.60-28,091.34-7,039.44

Finding the Fourth Proportional to 18,732.60, 28,091.34 and 7,039.44

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Solution

The fourth proportional to 18,732.60, 28,091.34 and 7,039.44 is: 10,556.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,732.60 : 28,091.34 = 7,039.44 : x
  2. Step 2: Convert to fraction form
    18,732.60/28,091.34 = 7,039.44/x
  3. Step 3: Cross multiply
    18,732.60x = 28,091.34 × 7,039.44
  4. Step 4: Simplify right side
    18,732.60x = 197,747,302.45
  5. Step 5: Solve for x
    x = 197,747,302.45/18,732.60
  6. Step 6: Final answer
    x = 10,556.32

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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.