Home / 12,125.03-18,161.99-5,556.74

Finding the Fourth Proportional to 12,125.03, 18,161.99 and 5,556.74

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Solution

The fourth proportional to 12,125.03, 18,161.99 and 5,556.74 is: 8,323.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.03 : 18,161.99 = 5,556.74 : x
  2. Step 2: Convert to fraction form
    12,125.03/18,161.99 = 5,556.74/x
  3. Step 3: Cross multiply
    12,125.03x = 18,161.99 × 5,556.74
  4. Step 4: Simplify right side
    12,125.03x = 100,921,358.56
  5. Step 5: Solve for x
    x = 100,921,358.56/12,125.03
  6. Step 6: Final answer
    x = 8,323.39

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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.