Home / 12,556.41-18,837.66-3,790.80

Finding the Fourth Proportional to 12,556.41, 18,837.66 and 3,790.80

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Solution

The fourth proportional to 12,556.41, 18,837.66 and 3,790.80 is: 5,687.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.41 : 18,837.66 = 3,790.80 : x
  2. Step 2: Convert to fraction form
    12,556.41/18,837.66 = 3,790.80/x
  3. Step 3: Cross multiply
    12,556.41x = 18,837.66 × 3,790.80
  4. Step 4: Simplify right side
    12,556.41x = 71,409,801.53
  5. Step 5: Solve for x
    x = 71,409,801.53/12,556.41
  6. Step 6: Final answer
    x = 5,687.12

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1.5x scale

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.