Home / 12,789.05-19,187.37-6,553.44

Finding the Fourth Proportional to 12,789.05, 19,187.37 and 6,553.44

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Solution

The fourth proportional to 12,789.05, 19,187.37 and 6,553.44 is: 9,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,789.05 : 19,187.37 = 6,553.44 : x
  2. Step 2: Convert to fraction form
    12,789.05/19,187.37 = 6,553.44/x
  3. Step 3: Cross multiply
    12,789.05x = 19,187.37 × 6,553.44
  4. Step 4: Simplify right side
    12,789.05x = 125,743,391.25
  5. Step 5: Solve for x
    x = 125,743,391.25/12,789.05
  6. Step 6: Final answer
    x = 9,832.11

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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.