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Finding the Fourth Proportional to 12,556.00, 18,833.55 and 3,790.69

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Solution

The fourth proportional to 12,556.00, 18,833.55 and 3,790.69 is: 5,685.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.00 : 18,833.55 = 3,790.69 : x
  2. Step 2: Convert to fraction form
    12,556.00/18,833.55 = 3,790.69/x
  3. Step 3: Cross multiply
    12,556.00x = 18,833.55 × 3,790.69
  4. Step 4: Simplify right side
    12,556.00x = 71,392,088.35
  5. Step 5: Solve for x
    x = 71,392,088.35/12,556.00
  6. Step 6: Final answer
    x = 5,685.89

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