Home / 12,790.79-19,185.24-4,028.21

Finding the Fourth Proportional to 12,790.79, 19,185.24 and 4,028.21

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Solution

The fourth proportional to 12,790.79, 19,185.24 and 4,028.21 is: 6,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.79 : 19,185.24 = 4,028.21 : x
  2. Step 2: Convert to fraction form
    12,790.79/19,185.24 = 4,028.21/x
  3. Step 3: Cross multiply
    12,790.79x = 19,185.24 × 4,028.21
  4. Step 4: Simplify right side
    12,790.79x = 77,282,115.01
  5. Step 5: Solve for x
    x = 77,282,115.01/12,790.79
  6. Step 6: Final answer
    x = 6,042.01

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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.