Home / 10,067.72-15,103.74-4,220.96

Finding the Fourth Proportional to 10,067.72, 15,103.74 and 4,220.96

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Solution

The fourth proportional to 10,067.72, 15,103.74 and 4,220.96 is: 6,332.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,067.72 : 15,103.74 = 4,220.96 : x
  2. Step 2: Convert to fraction form
    10,067.72/15,103.74 = 4,220.96/x
  3. Step 3: Cross multiply
    10,067.72x = 15,103.74 × 4,220.96
  4. Step 4: Simplify right side
    10,067.72x = 63,752,282.39
  5. Step 5: Solve for x
    x = 63,752,282.39/10,067.72
  6. Step 6: Final answer
    x = 6,332.35

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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.