Home / 11,045.35-15,232.42-8,219.73

Finding the Fourth Proportional to 11,045.35, 15,232.42 and 8,219.73

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Solution

The fourth proportional to 11,045.35, 15,232.42 and 8,219.73 is: 11,335.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,045.35 : 15,232.42 = 8,219.73 : x
  2. Step 2: Convert to fraction form
    11,045.35/15,232.42 = 8,219.73/x
  3. Step 3: Cross multiply
    11,045.35x = 15,232.42 × 8,219.73
  4. Step 4: Simplify right side
    11,045.35x = 125,206,379.65
  5. Step 5: Solve for x
    x = 125,206,379.65/11,045.35
  6. Step 6: Final answer
    x = 11,335.66

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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.