Home / 18,169.36-25,075.52-12,213.48

Finding the Fourth Proportional to 18,169.36, 25,075.52 and 12,213.48

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Solution

The fourth proportional to 18,169.36, 25,075.52 and 12,213.48 is: 16,855.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,169.36 : 25,075.52 = 12,213.48 : x
  2. Step 2: Convert to fraction form
    18,169.36/25,075.52 = 12,213.48/x
  3. Step 3: Cross multiply
    18,169.36x = 25,075.52 × 12,213.48
  4. Step 4: Simplify right side
    18,169.36x = 306,259,362.01
  5. Step 5: Solve for x
    x = 306,259,362.01/18,169.36
  6. Step 6: Final answer
    x = 16,855.81

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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.