Home / 12,149.58-18,219.22-3,827.36

Finding the Fourth Proportional to 12,149.58, 18,219.22 and 3,827.36

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Solution

The fourth proportional to 12,149.58, 18,219.22 and 3,827.36 is: 5,739.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.58 : 18,219.22 = 3,827.36 : x
  2. Step 2: Convert to fraction form
    12,149.58/18,219.22 = 3,827.36/x
  3. Step 3: Cross multiply
    12,149.58x = 18,219.22 × 3,827.36
  4. Step 4: Simplify right side
    12,149.58x = 69,731,513.86
  5. Step 5: Solve for x
    x = 69,731,513.86/12,149.58
  6. Step 6: Final answer
    x = 5,739.42

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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.