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Finding the Fourth Proportional to 12,288.88, 18,433.38 and 3,054.88

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Solution

The fourth proportional to 12,288.88, 18,433.38 and 3,054.88 is: 4,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.88 : 18,433.38 = 3,054.88 : x
  2. Step 2: Convert to fraction form
    12,288.88/18,433.38 = 3,054.88/x
  3. Step 3: Cross multiply
    12,288.88x = 18,433.38 × 3,054.88
  4. Step 4: Simplify right side
    12,288.88x = 56,311,671.73
  5. Step 5: Solve for x
    x = 56,311,671.73/12,288.88
  6. Step 6: Final answer
    x = 4,582.33

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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.