Home / 12,625.31-18,940.73-3,860.90

Finding the Fourth Proportional to 12,625.31, 18,940.73 and 3,860.90

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Solution

The fourth proportional to 12,625.31, 18,940.73 and 3,860.90 is: 5,792.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.31 : 18,940.73 = 3,860.90 : x
  2. Step 2: Convert to fraction form
    12,625.31/18,940.73 = 3,860.90/x
  3. Step 3: Cross multiply
    12,625.31x = 18,940.73 × 3,860.90
  4. Step 4: Simplify right side
    12,625.31x = 73,128,150.45
  5. Step 5: Solve for x
    x = 73,128,150.45/12,625.31
  6. Step 6: Final answer
    x = 5,792.19

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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.