Home / 13,083.45-18,054.79-7,418.73

Finding the Fourth Proportional to 13,083.45, 18,054.79 and 7,418.73

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Solution

The fourth proportional to 13,083.45, 18,054.79 and 7,418.73 is: 10,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.45 : 18,054.79 = 7,418.73 : x
  2. Step 2: Convert to fraction form
    13,083.45/18,054.79 = 7,418.73/x
  3. Step 3: Cross multiply
    13,083.45x = 18,054.79 × 7,418.73
  4. Step 4: Simplify right side
    13,083.45x = 133,943,612.22
  5. Step 5: Solve for x
    x = 133,943,612.22/13,083.45
  6. Step 6: Final answer
    x = 10,237.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.