Home / 13,946.45-20,919.68-8,755.97

Finding the Fourth Proportional to 13,946.45, 20,919.68 and 8,755.97

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Solution

The fourth proportional to 13,946.45, 20,919.68 and 8,755.97 is: 13,133.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.45 : 20,919.68 = 8,755.97 : x
  2. Step 2: Convert to fraction form
    13,946.45/20,919.68 = 8,755.97/x
  3. Step 3: Cross multiply
    13,946.45x = 20,919.68 × 8,755.97
  4. Step 4: Simplify right side
    13,946.45x = 183,171,942.11
  5. Step 5: Solve for x
    x = 183,171,942.11/13,946.45
  6. Step 6: Final answer
    x = 13,133.95

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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.