Home / 12,625.36-18,938.16-3,391.36

Finding the Fourth Proportional to 12,625.36, 18,938.16 and 3,391.36

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Solution

The fourth proportional to 12,625.36, 18,938.16 and 3,391.36 is: 5,087.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.36 : 18,938.16 = 3,391.36 : x
  2. Step 2: Convert to fraction form
    12,625.36/18,938.16 = 3,391.36/x
  3. Step 3: Cross multiply
    12,625.36x = 18,938.16 × 3,391.36
  4. Step 4: Simplify right side
    12,625.36x = 64,226,118.30
  5. Step 5: Solve for x
    x = 64,226,118.30/12,625.36
  6. Step 6: Final answer
    x = 5,087.07

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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.