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Finding the Fourth Proportional to 12,745.01, 19,110.49 and 6,828.83

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Solution

The fourth proportional to 12,745.01, 19,110.49 and 6,828.83 is: 10,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.01 : 19,110.49 = 6,828.83 : x
  2. Step 2: Convert to fraction form
    12,745.01/19,110.49 = 6,828.83/x
  3. Step 3: Cross multiply
    12,745.01x = 19,110.49 × 6,828.83
  4. Step 4: Simplify right side
    12,745.01x = 130,502,287.43
  5. Step 5: Solve for x
    x = 130,502,287.43/12,745.01
  6. Step 6: Final answer
    x = 10,239.48

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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.