Home / 12,198.36-18,299.25-3,877.50

Finding the Fourth Proportional to 12,198.36, 18,299.25 and 3,877.50

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Solution

The fourth proportional to 12,198.36, 18,299.25 and 3,877.50 is: 5,816.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198.36 : 18,299.25 = 3,877.50 : x
  2. Step 2: Convert to fraction form
    12,198.36/18,299.25 = 3,877.50/x
  3. Step 3: Cross multiply
    12,198.36x = 18,299.25 × 3,877.50
  4. Step 4: Simplify right side
    12,198.36x = 70,955,341.88
  5. Step 5: Solve for x
    x = 70,955,341.88/12,198.36
  6. Step 6: Final answer
    x = 5,816.79

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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.