Home / 18,703.20-25,803.97-11,992.56

Finding the Fourth Proportional to 18,703.20, 25,803.97 and 11,992.56

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Solution

The fourth proportional to 18,703.20, 25,803.97 and 11,992.56 is: 16,545.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.20 : 25,803.97 = 11,992.56 : x
  2. Step 2: Convert to fraction form
    18,703.20/25,803.97 = 11,992.56/x
  3. Step 3: Cross multiply
    18,703.20x = 25,803.97 × 11,992.56
  4. Step 4: Simplify right side
    18,703.20x = 309,455,531.72
  5. Step 5: Solve for x
    x = 309,455,531.72/18,703.20
  6. Step 6: Final answer
    x = 16,545.59

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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.