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Finding the Fourth Proportional to 12,033.70, 16,606.83 and 6,728.20

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Solution

The fourth proportional to 12,033.70, 16,606.83 and 6,728.20 is: 9,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,033.70 : 16,606.83 = 6,728.20 : x
  2. Step 2: Convert to fraction form
    12,033.70/16,606.83 = 6,728.20/x
  3. Step 3: Cross multiply
    12,033.70x = 16,606.83 × 6,728.20
  4. Step 4: Simplify right side
    12,033.70x = 111,734,073.61
  5. Step 5: Solve for x
    x = 111,734,073.61/12,033.70
  6. Step 6: Final answer
    x = 9,285.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.