Home / 12,556.21-18,827.48-3,789.99

Finding the Fourth Proportional to 12,556.21, 18,827.48 and 3,789.99

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Solution

The fourth proportional to 12,556.21, 18,827.48 and 3,789.99 is: 5,682.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.21 : 18,827.48 = 3,789.99 : x
  2. Step 2: Convert to fraction form
    12,556.21/18,827.48 = 3,789.99/x
  3. Step 3: Cross multiply
    12,556.21x = 18,827.48 × 3,789.99
  4. Step 4: Simplify right side
    12,556.21x = 71,355,866.79
  5. Step 5: Solve for x
    x = 71,355,866.79/12,556.21
  6. Step 6: Final answer
    x = 5,682.91

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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.