Home / 12,684.81-19,027.30-3,324.75

Finding the Fourth Proportional to 12,684.81, 19,027.30 and 3,324.75

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Solution

The fourth proportional to 12,684.81, 19,027.30 and 3,324.75 is: 4,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.81 : 19,027.30 = 3,324.75 : x
  2. Step 2: Convert to fraction form
    12,684.81/19,027.30 = 3,324.75/x
  3. Step 3: Cross multiply
    12,684.81x = 19,027.30 × 3,324.75
  4. Step 4: Simplify right side
    12,684.81x = 63,261,015.43
  5. Step 5: Solve for x
    x = 63,261,015.43/12,684.81
  6. Step 6: Final answer
    x = 4,987.15

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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.