Home / 18,949.82-28,412.06-9,083.72

Finding the Fourth Proportional to 18,949.82, 28,412.06 and 9,083.72

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Solution

The fourth proportional to 18,949.82, 28,412.06 and 9,083.72 is: 13,619.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.82 : 28,412.06 = 9,083.72 : x
  2. Step 2: Convert to fraction form
    18,949.82/28,412.06 = 9,083.72/x
  3. Step 3: Cross multiply
    18,949.82x = 28,412.06 × 9,083.72
  4. Step 4: Simplify right side
    18,949.82x = 258,087,223.27
  5. Step 5: Solve for x
    x = 258,087,223.27/18,949.82
  6. Step 6: Final answer
    x = 13,619.51

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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.