Home / 12,992.36-19,490.58-4,225.23

Finding the Fourth Proportional to 12,992.36, 19,490.58 and 4,225.23

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Solution

The fourth proportional to 12,992.36, 19,490.58 and 4,225.23 is: 6,338.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,992.36 : 19,490.58 = 4,225.23 : x
  2. Step 2: Convert to fraction form
    12,992.36/19,490.58 = 4,225.23/x
  3. Step 3: Cross multiply
    12,992.36x = 19,490.58 × 4,225.23
  4. Step 4: Simplify right side
    12,992.36x = 82,352,183.33
  5. Step 5: Solve for x
    x = 82,352,183.33/12,992.36
  6. Step 6: Final answer
    x = 6,338.51

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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.