Home / 14,515.16-21,775.26-5,279

Finding the Fourth Proportional to 14,515.16, 21,775.26 and 5,279

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Solution

The fourth proportional to 14,515.16, 21,775.26 and 5,279 is: 7,919.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.16 : 21,775.26 = 5,279 : x
  2. Step 2: Convert to fraction form
    14,515.16/21,775.26 = 5,279/x
  3. Step 3: Cross multiply
    14,515.16x = 21,775.26 × 5,279
  4. Step 4: Simplify right side
    14,515.16x = 114,951,597.54
  5. Step 5: Solve for x
    x = 114,951,597.54/14,515.16
  6. Step 6: Final answer
    x = 7,919.42

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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.