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Finding the Fourth Proportional to 12,303.73, 16,993.31 and 8,961.49

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Solution

The fourth proportional to 12,303.73, 16,993.31 and 8,961.49 is: 12,377.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,303.73 : 16,993.31 = 8,961.49 : x
  2. Step 2: Convert to fraction form
    12,303.73/16,993.31 = 8,961.49/x
  3. Step 3: Cross multiply
    12,303.73x = 16,993.31 × 8,961.49
  4. Step 4: Simplify right side
    12,303.73x = 152,285,377.63
  5. Step 5: Solve for x
    x = 152,285,377.63/12,303.73
  6. Step 6: Final answer
    x = 12,377.17

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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.