Home / 19,065.09-28,616.10-9,211.30

Finding the Fourth Proportional to 19,065.09, 28,616.10 and 9,211.30

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Solution

The fourth proportional to 19,065.09, 28,616.10 and 9,211.30 is: 13,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,065.09 : 28,616.10 = 9,211.30 : x
  2. Step 2: Convert to fraction form
    19,065.09/28,616.10 = 9,211.30/x
  3. Step 3: Cross multiply
    19,065.09x = 28,616.10 × 9,211.30
  4. Step 4: Simplify right side
    19,065.09x = 263,591,481.93
  5. Step 5: Solve for x
    x = 263,591,481.93/19,065.09
  6. Step 6: Final answer
    x = 13,825.87

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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.