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Finding the Fourth Proportional to 8,669.99, 12,995.06 and 4,229.97

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Solution

The fourth proportional to 8,669.99, 12,995.06 and 4,229.97 is: 6,340.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.99 : 12,995.06 = 4,229.97 : x
  2. Step 2: Convert to fraction form
    8,669.99/12,995.06 = 4,229.97/x
  3. Step 3: Cross multiply
    8,669.99x = 12,995.06 × 4,229.97
  4. Step 4: Simplify right side
    8,669.99x = 54,968,692.80
  5. Step 5: Solve for x
    x = 54,968,692.80/8,669.99
  6. Step 6: Final answer
    x = 6,340.11

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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.