Home / 12,661.48-18,994.74-3,896.06

Finding the Fourth Proportional to 12,661.48, 18,994.74 and 3,896.06

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Solution

The fourth proportional to 12,661.48, 18,994.74 and 3,896.06 is: 5,844.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,661.48 : 18,994.74 = 3,896.06 : x
  2. Step 2: Convert to fraction form
    12,661.48/18,994.74 = 3,896.06/x
  3. Step 3: Cross multiply
    12,661.48x = 18,994.74 × 3,896.06
  4. Step 4: Simplify right side
    12,661.48x = 74,004,646.72
  5. Step 5: Solve for x
    x = 74,004,646.72/12,661.48
  6. Step 6: Final answer
    x = 5,844.87

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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.