Home / 10,421.21-15,633.59-3,847.43

Finding the Fourth Proportional to 10,421.21, 15,633.59 and 3,847.43

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Solution

The fourth proportional to 10,421.21, 15,633.59 and 3,847.43 is: 5,771.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.21 : 15,633.59 = 3,847.43 : x
  2. Step 2: Convert to fraction form
    10,421.21/15,633.59 = 3,847.43/x
  3. Step 3: Cross multiply
    10,421.21x = 15,633.59 × 3,847.43
  4. Step 4: Simplify right side
    10,421.21x = 60,149,143.17
  5. Step 5: Solve for x
    x = 60,149,143.17/10,421.21
  6. Step 6: Final answer
    x = 5,771.80

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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.