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Finding the Fourth Proportional to 12,162.36, 16,764.36 and 8,805.36

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Solution

The fourth proportional to 12,162.36, 16,764.36 and 8,805.36 is: 12,137.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.36 : 16,764.36 = 8,805.36 : x
  2. Step 2: Convert to fraction form
    12,162.36/16,764.36 = 8,805.36/x
  3. Step 3: Cross multiply
    12,162.36x = 16,764.36 × 8,805.36
  4. Step 4: Simplify right side
    12,162.36x = 147,616,224.97
  5. Step 5: Solve for x
    x = 147,616,224.97/12,162.36
  6. Step 6: Final answer
    x = 12,137.14

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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.