Home / 12,942.24-19,398.96-8,494.80

Finding the Fourth Proportional to 12,942.24, 19,398.96 and 8,494.80

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Solution

The fourth proportional to 12,942.24, 19,398.96 and 8,494.80 is: 12,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.24 : 19,398.96 = 8,494.80 : x
  2. Step 2: Convert to fraction form
    12,942.24/19,398.96 = 8,494.80/x
  3. Step 3: Cross multiply
    12,942.24x = 19,398.96 × 8,494.80
  4. Step 4: Simplify right side
    12,942.24x = 164,790,285.41
  5. Step 5: Solve for x
    x = 164,790,285.41/12,942.24
  6. Step 6: Final answer
    x = 12,732.75

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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.