Home / 13,083.08-18,054.25-7,418.35

Finding the Fourth Proportional to 13,083.08, 18,054.25 and 7,418.35

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Solution

The fourth proportional to 13,083.08, 18,054.25 and 7,418.35 is: 10,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.08 : 18,054.25 = 7,418.35 : x
  2. Step 2: Convert to fraction form
    13,083.08/18,054.25 = 7,418.35/x
  3. Step 3: Cross multiply
    13,083.08x = 18,054.25 × 7,418.35
  4. Step 4: Simplify right side
    13,083.08x = 133,932,745.49
  5. Step 5: Solve for x
    x = 133,932,745.49/13,083.08
  6. Step 6: Final answer
    x = 10,237.10

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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.