Home / 12,745.73-17,545.44-11,057.20

Finding the Fourth Proportional to 12,745.73, 17,545.44 and 11,057.20

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Solution

The fourth proportional to 12,745.73, 17,545.44 and 11,057.20 is: 15,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,745.73 : 17,545.44 = 11,057.20 : x
  2. Step 2: Convert to fraction form
    12,745.73/17,545.44 = 11,057.20/x
  3. Step 3: Cross multiply
    12,745.73x = 17,545.44 × 11,057.20
  4. Step 4: Simplify right side
    12,745.73x = 194,003,436.77
  5. Step 5: Solve for x
    x = 194,003,436.77/12,745.73
  6. Step 6: Final answer
    x = 15,221.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.