Home / 11,121.72-16,682.40-5,282.52

Finding the Fourth Proportional to 11,121.72, 16,682.40 and 5,282.52

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Solution

The fourth proportional to 11,121.72, 16,682.40 and 5,282.52 is: 7,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.72 : 16,682.40 = 5,282.52 : x
  2. Step 2: Convert to fraction form
    11,121.72/16,682.40 = 5,282.52/x
  3. Step 3: Cross multiply
    11,121.72x = 16,682.40 × 5,282.52
  4. Step 4: Simplify right side
    11,121.72x = 88,125,111.65
  5. Step 5: Solve for x
    x = 88,125,111.65/11,121.72
  6. Step 6: Final answer
    x = 7,923.69

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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.