Home / 12,712.80-19,067.04-4,392.48

Finding the Fourth Proportional to 12,712.80, 19,067.04 and 4,392.48

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Solution

The fourth proportional to 12,712.80, 19,067.04 and 4,392.48 is: 6,587.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.80 : 19,067.04 = 4,392.48 : x
  2. Step 2: Convert to fraction form
    12,712.80/19,067.04 = 4,392.48/x
  3. Step 3: Cross multiply
    12,712.80x = 19,067.04 × 4,392.48
  4. Step 4: Simplify right side
    12,712.80x = 83,751,591.86
  5. Step 5: Solve for x
    x = 83,751,591.86/12,712.80
  6. Step 6: Final answer
    x = 6,587.97

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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.