Home / 12,469.93-18,689.26-6,231.68

Finding the Fourth Proportional to 12,469.93, 18,689.26 and 6,231.68

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Solution

The fourth proportional to 12,469.93, 18,689.26 and 6,231.68 is: 9,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.93 : 18,689.26 = 6,231.68 : x
  2. Step 2: Convert to fraction form
    12,469.93/18,689.26 = 6,231.68/x
  3. Step 3: Cross multiply
    12,469.93x = 18,689.26 × 6,231.68
  4. Step 4: Simplify right side
    12,469.93x = 116,465,487.76
  5. Step 5: Solve for x
    x = 116,465,487.76/12,469.93
  6. Step 6: Final answer
    x = 9,339.71

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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.