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Finding the Fourth Proportional to 9,289.80, 13,930.83 and 3,443.22

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Solution

The fourth proportional to 9,289.80, 13,930.83 and 3,443.22 is: 5,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.80 : 13,930.83 = 3,443.22 : x
  2. Step 2: Convert to fraction form
    9,289.80/13,930.83 = 3,443.22/x
  3. Step 3: Cross multiply
    9,289.80x = 13,930.83 × 3,443.22
  4. Step 4: Simplify right side
    9,289.80x = 47,966,912.47
  5. Step 5: Solve for x
    x = 47,966,912.47/9,289.80
  6. Step 6: Final answer
    x = 5,163.40

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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.