Home / 12,949.21-19,400.30-5,935.06

Finding the Fourth Proportional to 12,949.21, 19,400.30 and 5,935.06

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Solution

The fourth proportional to 12,949.21, 19,400.30 and 5,935.06 is: 8,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949.21 : 19,400.30 = 5,935.06 : x
  2. Step 2: Convert to fraction form
    12,949.21/19,400.30 = 5,935.06/x
  3. Step 3: Cross multiply
    12,949.21x = 19,400.30 × 5,935.06
  4. Step 4: Simplify right side
    12,949.21x = 115,141,817.84
  5. Step 5: Solve for x
    x = 115,141,817.84/12,949.21
  6. Step 6: Final answer
    x = 8,891.81

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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.