Home / 19,286.14-28,933.08-8,192.74

Finding the Fourth Proportional to 19,286.14, 28,933.08 and 8,192.74

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Solution

The fourth proportional to 19,286.14, 28,933.08 and 8,192.74 is: 12,290.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,286.14 : 28,933.08 = 8,192.74 : x
  2. Step 2: Convert to fraction form
    19,286.14/28,933.08 = 8,192.74/x
  3. Step 3: Cross multiply
    19,286.14x = 28,933.08 × 8,192.74
  4. Step 4: Simplify right side
    19,286.14x = 237,041,201.84
  5. Step 5: Solve for x
    x = 237,041,201.84/19,286.14
  6. Step 6: Final answer
    x = 12,290.75

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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.