Home / 12,946.26-19,405.92-8,786.61

Finding the Fourth Proportional to 12,946.26, 19,405.92 and 8,786.61

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Solution

The fourth proportional to 12,946.26, 19,405.92 and 8,786.61 is: 13,170.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.26 : 19,405.92 = 8,786.61 : x
  2. Step 2: Convert to fraction form
    12,946.26/19,405.92 = 8,786.61/x
  3. Step 3: Cross multiply
    12,946.26x = 19,405.92 × 8,786.61
  4. Step 4: Simplify right side
    12,946.26x = 170,512,153.70
  5. Step 5: Solve for x
    x = 170,512,153.70/12,946.26
  6. Step 6: Final answer
    x = 13,170.77

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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.