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Finding the Fourth Proportional to 8,772.54, 13,158.81 and 2,616.54

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Solution

The fourth proportional to 8,772.54, 13,158.81 and 2,616.54 is: 3,924.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.54 : 13,158.81 = 2,616.54 : x
  2. Step 2: Convert to fraction form
    8,772.54/13,158.81 = 2,616.54/x
  3. Step 3: Cross multiply
    8,772.54x = 13,158.81 × 2,616.54
  4. Step 4: Simplify right side
    8,772.54x = 34,430,552.72
  5. Step 5: Solve for x
    x = 34,430,552.72/8,772.54
  6. Step 6: Final answer
    x = 3,924.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.