Home / 10,421.96-15,629.25-3,846.38

Finding the Fourth Proportional to 10,421.96, 15,629.25 and 3,846.38

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Solution

The fourth proportional to 10,421.96, 15,629.25 and 3,846.38 is: 5,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.96 : 15,629.25 = 3,846.38 : x
  2. Step 2: Convert to fraction form
    10,421.96/15,629.25 = 3,846.38/x
  3. Step 3: Cross multiply
    10,421.96x = 15,629.25 × 3,846.38
  4. Step 4: Simplify right side
    10,421.96x = 60,116,034.62
  5. Step 5: Solve for x
    x = 60,116,034.62/10,421.96
  6. Step 6: Final answer
    x = 5,768.21

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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.