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Finding the Fourth Proportional to 9,367.30, 12,900.63 and 9,163.18

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Solution

The fourth proportional to 9,367.30, 12,900.63 and 9,163.18 is: 12,619.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,367.30 : 12,900.63 = 9,163.18 : x
  2. Step 2: Convert to fraction form
    9,367.30/12,900.63 = 9,163.18/x
  3. Step 3: Cross multiply
    9,367.30x = 12,900.63 × 9,163.18
  4. Step 4: Simplify right side
    9,367.30x = 118,210,794.80
  5. Step 5: Solve for x
    x = 118,210,794.80/9,367.30
  6. Step 6: Final answer
    x = 12,619.52

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