Home / 13,067.94-19,634.04-8,390.20

Finding the Fourth Proportional to 13,067.94, 19,634.04 and 8,390.20

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Solution

The fourth proportional to 13,067.94, 19,634.04 and 8,390.20 is: 12,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.94 : 19,634.04 = 8,390.20 : x
  2. Step 2: Convert to fraction form
    13,067.94/19,634.04 = 8,390.20/x
  3. Step 3: Cross multiply
    13,067.94x = 19,634.04 × 8,390.20
  4. Step 4: Simplify right side
    13,067.94x = 164,733,522.41
  5. Step 5: Solve for x
    x = 164,733,522.41/13,067.94
  6. Step 6: Final answer
    x = 12,605.93

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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.