Home / 12,707.70-19,054.62-3,821.73

Finding the Fourth Proportional to 12,707.70, 19,054.62 and 3,821.73

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Solution

The fourth proportional to 12,707.70, 19,054.62 and 3,821.73 is: 5,730.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.70 : 19,054.62 = 3,821.73 : x
  2. Step 2: Convert to fraction form
    12,707.70/19,054.62 = 3,821.73/x
  3. Step 3: Cross multiply
    12,707.70x = 19,054.62 × 3,821.73
  4. Step 4: Simplify right side
    12,707.70x = 72,821,612.89
  5. Step 5: Solve for x
    x = 72,821,612.89/12,707.70
  6. Step 6: Final answer
    x = 5,730.51

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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.