Home / 12,106.24-16,707.82-8,135.62

Finding the Fourth Proportional to 12,106.24, 16,707.82 and 8,135.62

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Solution

The fourth proportional to 12,106.24, 16,707.82 and 8,135.62 is: 11,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.24 : 16,707.82 = 8,135.62 : x
  2. Step 2: Convert to fraction form
    12,106.24/16,707.82 = 8,135.62/x
  3. Step 3: Cross multiply
    12,106.24x = 16,707.82 × 8,135.62
  4. Step 4: Simplify right side
    12,106.24x = 135,928,474.55
  5. Step 5: Solve for x
    x = 135,928,474.55/12,106.24
  6. Step 6: Final answer
    x = 11,227.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.