Home / 12,019.57-18,029.35-6,858.25

Finding the Fourth Proportional to 12,019.57, 18,029.35 and 6,858.25

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Solution

The fourth proportional to 12,019.57, 18,029.35 and 6,858.25 is: 10,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,019.57 : 18,029.35 = 6,858.25 : x
  2. Step 2: Convert to fraction form
    12,019.57/18,029.35 = 6,858.25/x
  3. Step 3: Cross multiply
    12,019.57x = 18,029.35 × 6,858.25
  4. Step 4: Simplify right side
    12,019.57x = 123,649,789.64
  5. Step 5: Solve for x
    x = 123,649,789.64/12,019.57
  6. Step 6: Final answer
    x = 10,287.37

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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.