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Finding the Fourth Proportional to 18,954, 28,447.92 and 9,955.44

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Solution

The fourth proportional to 18,954, 28,447.92 and 9,955.44 is: 14,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,954 : 28,447.92 = 9,955.44 : x
  2. Step 2: Convert to fraction form
    18,954/28,447.92 = 9,955.44/x
  3. Step 3: Cross multiply
    18,954x = 28,447.92 × 9,955.44
  4. Step 4: Simplify right side
    18,954x = 283,211,560.68
  5. Step 5: Solve for x
    x = 283,211,560.68/18,954
  6. Step 6: Final answer
    x = 14,942.05

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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.