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Finding the Fourth Proportional to 8,865.64, 13,297.01 and 4,185.64

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Solution

The fourth proportional to 8,865.64, 13,297.01 and 4,185.64 is: 6,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,865.64 : 13,297.01 = 4,185.64 : x
  2. Step 2: Convert to fraction form
    8,865.64/13,297.01 = 4,185.64/x
  3. Step 3: Cross multiply
    8,865.64x = 13,297.01 × 4,185.64
  4. Step 4: Simplify right side
    8,865.64x = 55,656,440.92
  5. Step 5: Solve for x
    x = 55,656,440.92/8,865.64
  6. Step 6: Final answer
    x = 6,277.77

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Why These Related Problems?

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