Home / 16,815.54-23,197.86-11,431.38

Finding the Fourth Proportional to 16,815.54, 23,197.86 and 11,431.38

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Solution

The fourth proportional to 16,815.54, 23,197.86 and 11,431.38 is: 15,770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.54 : 23,197.86 = 11,431.38 : x
  2. Step 2: Convert to fraction form
    16,815.54/23,197.86 = 11,431.38/x
  3. Step 3: Cross multiply
    16,815.54x = 23,197.86 × 11,431.38
  4. Step 4: Simplify right side
    16,815.54x = 265,183,552.85
  5. Step 5: Solve for x
    x = 265,183,552.85/16,815.54
  6. Step 6: Final answer
    x = 15,770.15

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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.