Home / 12,906.81-19,360.89-4,141.80

Finding the Fourth Proportional to 12,906.81, 19,360.89 and 4,141.80

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Solution

The fourth proportional to 12,906.81, 19,360.89 and 4,141.80 is: 6,212.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.81 : 19,360.89 = 4,141.80 : x
  2. Step 2: Convert to fraction form
    12,906.81/19,360.89 = 4,141.80/x
  3. Step 3: Cross multiply
    12,906.81x = 19,360.89 × 4,141.80
  4. Step 4: Simplify right side
    12,906.81x = 80,188,934.20
  5. Step 5: Solve for x
    x = 80,188,934.20/12,906.81
  6. Step 6: Final answer
    x = 6,212.92

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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.