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Finding the Fourth Proportional to 8,616.56, 12,918.34 and 4,400.44

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Solution

The fourth proportional to 8,616.56, 12,918.34 and 4,400.44 is: 6,597.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.56 : 12,918.34 = 4,400.44 : x
  2. Step 2: Convert to fraction form
    8,616.56/12,918.34 = 4,400.44/x
  3. Step 3: Cross multiply
    8,616.56x = 12,918.34 × 4,400.44
  4. Step 4: Simplify right side
    8,616.56x = 56,846,353.27
  5. Step 5: Solve for x
    x = 56,846,353.27/8,616.56
  6. Step 6: Final answer
    x = 6,597.34

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1.5x scale

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.