Home / 12,684.23-19,027.25-3,918

Finding the Fourth Proportional to 12,684.23, 19,027.25 and 3,918

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Solution

The fourth proportional to 12,684.23, 19,027.25 and 3,918 is: 5,877.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.23 : 19,027.25 = 3,918 : x
  2. Step 2: Convert to fraction form
    12,684.23/19,027.25 = 3,918/x
  3. Step 3: Cross multiply
    12,684.23x = 19,027.25 × 3,918
  4. Step 4: Simplify right side
    12,684.23x = 74,548,765.50
  5. Step 5: Solve for x
    x = 74,548,765.50/12,684.23
  6. Step 6: Final answer
    x = 5,877.28

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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.