Home / 12,124.96-18,189.25-4,331.94

Finding the Fourth Proportional to 12,124.96, 18,189.25 and 4,331.94

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Solution

The fourth proportional to 12,124.96, 18,189.25 and 4,331.94 is: 6,498.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.96 : 18,189.25 = 4,331.94 : x
  2. Step 2: Convert to fraction form
    12,124.96/18,189.25 = 4,331.94/x
  3. Step 3: Cross multiply
    12,124.96x = 18,189.25 × 4,331.94
  4. Step 4: Simplify right side
    12,124.96x = 78,794,739.65
  5. Step 5: Solve for x
    x = 78,794,739.65/12,124.96
  6. Step 6: Final answer
    x = 6,498.56

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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.