Home / 18,786.23-28,181.23-6,943.12

Finding the Fourth Proportional to 18,786.23, 28,181.23 and 6,943.12

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Solution

The fourth proportional to 18,786.23, 28,181.23 and 6,943.12 is: 10,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.23 : 28,181.23 = 6,943.12 : x
  2. Step 2: Convert to fraction form
    18,786.23/28,181.23 = 6,943.12/x
  3. Step 3: Cross multiply
    18,786.23x = 28,181.23 × 6,943.12
  4. Step 4: Simplify right side
    18,786.23x = 195,665,573.83
  5. Step 5: Solve for x
    x = 195,665,573.83/18,786.23
  6. Step 6: Final answer
    x = 10,415.37

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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.