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Finding the Fourth Proportional to 9,374.51, 12,936.83 and 5,396.40

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Solution

The fourth proportional to 9,374.51, 12,936.83 and 5,396.40 is: 7,447.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,374.51 : 12,936.83 = 5,396.40 : x
  2. Step 2: Convert to fraction form
    9,374.51/12,936.83 = 5,396.40/x
  3. Step 3: Cross multiply
    9,374.51x = 12,936.83 × 5,396.40
  4. Step 4: Simplify right side
    9,374.51x = 69,812,282.43
  5. Step 5: Solve for x
    x = 69,812,282.43/9,374.51
  6. Step 6: Final answer
    x = 7,447.03

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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.