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Finding the Fourth Proportional to 8,450.36, 12,655.10 and 8,228.92

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Solution

The fourth proportional to 8,450.36, 12,655.10 and 8,228.92 is: 12,323.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.36 : 12,655.10 = 8,228.92 : x
  2. Step 2: Convert to fraction form
    8,450.36/12,655.10 = 8,228.92/x
  3. Step 3: Cross multiply
    8,450.36x = 12,655.10 × 8,228.92
  4. Step 4: Simplify right side
    8,450.36x = 104,137,805.49
  5. Step 5: Solve for x
    x = 104,137,805.49/8,450.36
  6. Step 6: Final answer
    x = 12,323.48

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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.