Home / 12,946.38-19,406.11-8,786.73

Finding the Fourth Proportional to 12,946.38, 19,406.11 and 8,786.73

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Solution

The fourth proportional to 12,946.38, 19,406.11 and 8,786.73 is: 13,170.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946.38 : 19,406.11 = 8,786.73 : x
  2. Step 2: Convert to fraction form
    12,946.38/19,406.11 = 8,786.73/x
  3. Step 3: Cross multiply
    12,946.38x = 19,406.11 × 8,786.73
  4. Step 4: Simplify right side
    12,946.38x = 170,516,226.95
  5. Step 5: Solve for x
    x = 170,516,226.95/12,946.38
  6. Step 6: Final answer
    x = 13,170.96

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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.