Home / 8,680.43-13,017.95-3,133.07

Finding the Fourth Proportional to 8,680.43, 13,017.95 and 3,133.07

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Solution

The fourth proportional to 8,680.43, 13,017.95 and 3,133.07 is: 4,698.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.43 : 13,017.95 = 3,133.07 : x
  2. Step 2: Convert to fraction form
    8,680.43/13,017.95 = 3,133.07/x
  3. Step 3: Cross multiply
    8,680.43x = 13,017.95 × 3,133.07
  4. Step 4: Simplify right side
    8,680.43x = 40,786,067.85
  5. Step 5: Solve for x
    x = 40,786,067.85/8,680.43
  6. Step 6: Final answer
    x = 4,698.63

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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.