Home / 12,628.40-18,923.25-6,370.97

Finding the Fourth Proportional to 12,628.40, 18,923.25 and 6,370.97

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Solution

The fourth proportional to 12,628.40, 18,923.25 and 6,370.97 is: 9,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,628.40 : 18,923.25 = 6,370.97 : x
  2. Step 2: Convert to fraction form
    12,628.40/18,923.25 = 6,370.97/x
  3. Step 3: Cross multiply
    12,628.40x = 18,923.25 × 6,370.97
  4. Step 4: Simplify right side
    12,628.40x = 120,559,458.05
  5. Step 5: Solve for x
    x = 120,559,458.05/12,628.40
  6. Step 6: Final answer
    x = 9,546.69

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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.