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Finding the Fourth Proportional to 8,409.96, 12,622.73 and 4,252.91

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Solution

The fourth proportional to 8,409.96, 12,622.73 and 4,252.91 is: 6,383.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.96 : 12,622.73 = 4,252.91 : x
  2. Step 2: Convert to fraction form
    8,409.96/12,622.73 = 4,252.91/x
  3. Step 3: Cross multiply
    8,409.96x = 12,622.73 × 4,252.91
  4. Step 4: Simplify right side
    8,409.96x = 53,683,334.64
  5. Step 5: Solve for x
    x = 53,683,334.64/8,409.96
  6. Step 6: Final answer
    x = 6,383.30

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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.