Home / 12,908.20-19,365.52-3,674.20

Finding the Fourth Proportional to 12,908.20, 19,365.52 and 3,674.20

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Solution

The fourth proportional to 12,908.20, 19,365.52 and 3,674.20 is: 5,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,908.20 : 19,365.52 = 3,674.20 : x
  2. Step 2: Convert to fraction form
    12,908.20/19,365.52 = 3,674.20/x
  3. Step 3: Cross multiply
    12,908.20x = 19,365.52 × 3,674.20
  4. Step 4: Simplify right side
    12,908.20x = 71,152,793.58
  5. Step 5: Solve for x
    x = 71,152,793.58/12,908.20
  6. Step 6: Final answer
    x = 5,512.22

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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.