Home / 18,736.80-28,110.06-9,964.50

Finding the Fourth Proportional to 18,736.80, 28,110.06 and 9,964.50

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Solution

The fourth proportional to 18,736.80, 28,110.06 and 9,964.50 is: 14,949.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.80 : 28,110.06 = 9,964.50 : x
  2. Step 2: Convert to fraction form
    18,736.80/28,110.06 = 9,964.50/x
  3. Step 3: Cross multiply
    18,736.80x = 28,110.06 × 9,964.50
  4. Step 4: Simplify right side
    18,736.80x = 280,102,692.87
  5. Step 5: Solve for x
    x = 280,102,692.87/18,736.80
  6. Step 6: Final answer
    x = 14,949.33

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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.