Home / 12,625.76-18,936.81-3,858.32

Finding the Fourth Proportional to 12,625.76, 18,936.81 and 3,858.32

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Solution

The fourth proportional to 12,625.76, 18,936.81 and 3,858.32 is: 5,786.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.76 : 18,936.81 = 3,858.32 : x
  2. Step 2: Convert to fraction form
    12,625.76/18,936.81 = 3,858.32/x
  3. Step 3: Cross multiply
    12,625.76x = 18,936.81 × 3,858.32
  4. Step 4: Simplify right side
    12,625.76x = 73,064,224.43
  5. Step 5: Solve for x
    x = 73,064,224.43/12,625.76
  6. Step 6: Final answer
    x = 5,786.92

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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.