Home / 12,707.78-19,050.30-4,914.80

Finding the Fourth Proportional to 12,707.78, 19,050.30 and 4,914.80

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Solution

The fourth proportional to 12,707.78, 19,050.30 and 4,914.80 is: 7,367.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,707.78 : 19,050.30 = 4,914.80 : x
  2. Step 2: Convert to fraction form
    12,707.78/19,050.30 = 4,914.80/x
  3. Step 3: Cross multiply
    12,707.78x = 19,050.30 × 4,914.80
  4. Step 4: Simplify right side
    12,707.78x = 93,628,414.44
  5. Step 5: Solve for x
    x = 93,628,414.44/12,707.78
  6. Step 6: Final answer
    x = 7,367.80

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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.