Home / 16,185.78-24,286.23-8,390.34

Finding the Fourth Proportional to 16,185.78, 24,286.23 and 8,390.34

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Solution

The fourth proportional to 16,185.78, 24,286.23 and 8,390.34 is: 12,589.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,185.78 : 24,286.23 = 8,390.34 : x
  2. Step 2: Convert to fraction form
    16,185.78/24,286.23 = 8,390.34/x
  3. Step 3: Cross multiply
    16,185.78x = 24,286.23 × 8,390.34
  4. Step 4: Simplify right side
    16,185.78x = 203,769,727.02
  5. Step 5: Solve for x
    x = 203,769,727.02/16,185.78
  6. Step 6: Final answer
    x = 12,589.43

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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.