Home / 12,124.80-18,187.22-3,805.03

Finding the Fourth Proportional to 12,124.80, 18,187.22 and 3,805.03

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Solution

The fourth proportional to 12,124.80, 18,187.22 and 3,805.03 is: 5,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.80 : 18,187.22 = 3,805.03 : x
  2. Step 2: Convert to fraction form
    12,124.80/18,187.22 = 3,805.03/x
  3. Step 3: Cross multiply
    12,124.80x = 18,187.22 × 3,805.03
  4. Step 4: Simplify right side
    12,124.80x = 69,202,917.72
  5. Step 5: Solve for x
    x = 69,202,917.72/12,124.80
  6. Step 6: Final answer
    x = 5,707.55

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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.