Home / 12,645.44-18,942.20-10,166.88

Finding the Fourth Proportional to 12,645.44, 18,942.20 and 10,166.88

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Solution

The fourth proportional to 12,645.44, 18,942.20 and 10,166.88 is: 15,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,645.44 : 18,942.20 = 10,166.88 : x
  2. Step 2: Convert to fraction form
    12,645.44/18,942.20 = 10,166.88/x
  3. Step 3: Cross multiply
    12,645.44x = 18,942.20 × 10,166.88
  4. Step 4: Simplify right side
    12,645.44x = 192,583,074.34
  5. Step 5: Solve for x
    x = 192,583,074.34/12,645.44
  6. Step 6: Final answer
    x = 15,229.45

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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.