Home / 12,493.08-18,739.62-4,171.56

Finding the Fourth Proportional to 12,493.08, 18,739.62 and 4,171.56

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Solution

The fourth proportional to 12,493.08, 18,739.62 and 4,171.56 is: 6,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.08 : 18,739.62 = 4,171.56 : x
  2. Step 2: Convert to fraction form
    12,493.08/18,739.62 = 4,171.56/x
  3. Step 3: Cross multiply
    12,493.08x = 18,739.62 × 4,171.56
  4. Step 4: Simplify right side
    12,493.08x = 78,173,449.21
  5. Step 5: Solve for x
    x = 78,173,449.21/12,493.08
  6. Step 6: Final answer
    x = 6,257.34

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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.