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Finding the Fourth Proportional to 10,399.64, 14,351.73 and 5,683.92

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Solution

The fourth proportional to 10,399.64, 14,351.73 and 5,683.92 is: 7,843.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.64 : 14,351.73 = 5,683.92 : x
  2. Step 2: Convert to fraction form
    10,399.64/14,351.73 = 5,683.92/x
  3. Step 3: Cross multiply
    10,399.64x = 14,351.73 × 5,683.92
  4. Step 4: Simplify right side
    10,399.64x = 81,574,122.75
  5. Step 5: Solve for x
    x = 81,574,122.75/10,399.64
  6. Step 6: Final answer
    x = 7,843.94

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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.