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Finding the Fourth Proportional to 9,366.81, 12,926.57 and 5,387.92

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Solution

The fourth proportional to 9,366.81, 12,926.57 and 5,387.92 is: 7,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,366.81 : 12,926.57 = 5,387.92 : x
  2. Step 2: Convert to fraction form
    9,366.81/12,926.57 = 5,387.92/x
  3. Step 3: Cross multiply
    9,366.81x = 12,926.57 × 5,387.92
  4. Step 4: Simplify right side
    9,366.81x = 69,647,325.03
  5. Step 5: Solve for x
    x = 69,647,325.03/9,366.81
  6. Step 6: Final answer
    x = 7,435.54

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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.