Home / 12,195.55-16,830.35-7,481.35

Finding the Fourth Proportional to 12,195.55, 16,830.35 and 7,481.35

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Solution

The fourth proportional to 12,195.55, 16,830.35 and 7,481.35 is: 10,324.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.55 : 16,830.35 = 7,481.35 : x
  2. Step 2: Convert to fraction form
    12,195.55/16,830.35 = 7,481.35/x
  3. Step 3: Cross multiply
    12,195.55x = 16,830.35 × 7,481.35
  4. Step 4: Simplify right side
    12,195.55x = 125,913,738.97
  5. Step 5: Solve for x
    x = 125,913,738.97/12,195.55
  6. Step 6: Final answer
    x = 10,324.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.