Home / 12,556.66-18,838.04-3,791.05

Finding the Fourth Proportional to 12,556.66, 18,838.04 and 3,791.05

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Solution

The fourth proportional to 12,556.66, 18,838.04 and 3,791.05 is: 5,687.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.66 : 18,838.04 = 3,791.05 : x
  2. Step 2: Convert to fraction form
    12,556.66/18,838.04 = 3,791.05/x
  3. Step 3: Cross multiply
    12,556.66x = 18,838.04 × 3,791.05
  4. Step 4: Simplify right side
    12,556.66x = 71,415,951.54
  5. Step 5: Solve for x
    x = 71,415,951.54/12,556.66
  6. Step 6: Final answer
    x = 5,687.50

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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.