Home / 12,020.25-18,032.70-3,698.79

Finding the Fourth Proportional to 12,020.25, 18,032.70 and 3,698.79

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Solution

The fourth proportional to 12,020.25, 18,032.70 and 3,698.79 is: 5,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.25 : 18,032.70 = 3,698.79 : x
  2. Step 2: Convert to fraction form
    12,020.25/18,032.70 = 3,698.79/x
  3. Step 3: Cross multiply
    12,020.25x = 18,032.70 × 3,698.79
  4. Step 4: Simplify right side
    12,020.25x = 66,699,170.43
  5. Step 5: Solve for x
    x = 66,699,170.43/12,020.25
  6. Step 6: Final answer
    x = 5,548.90

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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.