Home / 12,014.75-18,022.62-4,122.69

Finding the Fourth Proportional to 12,014.75, 18,022.62 and 4,122.69

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Solution

The fourth proportional to 12,014.75, 18,022.62 and 4,122.69 is: 6,184.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,014.75 : 18,022.62 = 4,122.69 : x
  2. Step 2: Convert to fraction form
    12,014.75/18,022.62 = 4,122.69/x
  3. Step 3: Cross multiply
    12,014.75x = 18,022.62 × 4,122.69
  4. Step 4: Simplify right side
    12,014.75x = 74,301,675.25
  5. Step 5: Solve for x
    x = 74,301,675.25/12,014.75
  6. Step 6: Final answer
    x = 6,184.21

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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.