Home / 12,999.33-19,518.44-12,545.73

Finding the Fourth Proportional to 12,999.33, 19,518.44 and 12,545.73

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Solution

The fourth proportional to 12,999.33, 19,518.44 and 12,545.73 is: 18,837.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,999.33 : 19,518.44 = 12,545.73 : x
  2. Step 2: Convert to fraction form
    12,999.33/19,518.44 = 12,545.73/x
  3. Step 3: Cross multiply
    12,999.33x = 19,518.44 × 12,545.73
  4. Step 4: Simplify right side
    12,999.33x = 244,873,015.53
  5. Step 5: Solve for x
    x = 244,873,015.53/12,999.33
  6. Step 6: Final answer
    x = 18,837.36

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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.