Home / 13,222.62-19,830.87-3,860.55

Finding the Fourth Proportional to 13,222.62, 19,830.87 and 3,860.55

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Solution

The fourth proportional to 13,222.62, 19,830.87 and 3,860.55 is: 5,789.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.62 : 19,830.87 = 3,860.55 : x
  2. Step 2: Convert to fraction form
    13,222.62/19,830.87 = 3,860.55/x
  3. Step 3: Cross multiply
    13,222.62x = 19,830.87 × 3,860.55
  4. Step 4: Simplify right side
    13,222.62x = 76,558,065.18
  5. Step 5: Solve for x
    x = 76,558,065.18/13,222.62
  6. Step 6: Final answer
    x = 5,789.93

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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.