Home / 12,682.89-19,025.73-3,918.51

Finding the Fourth Proportional to 12,682.89, 19,025.73 and 3,918.51

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Solution

The fourth proportional to 12,682.89, 19,025.73 and 3,918.51 is: 5,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,682.89 : 19,025.73 = 3,918.51 : x
  2. Step 2: Convert to fraction form
    12,682.89/19,025.73 = 3,918.51/x
  3. Step 3: Cross multiply
    12,682.89x = 19,025.73 × 3,918.51
  4. Step 4: Simplify right side
    12,682.89x = 74,552,513.26
  5. Step 5: Solve for x
    x = 74,552,513.26/12,682.89
  6. Step 6: Final answer
    x = 5,878.20

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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.