Home / 10,939.86-16,408.98-4,361.85

Finding the Fourth Proportional to 10,939.86, 16,408.98 and 4,361.85

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Solution

The fourth proportional to 10,939.86, 16,408.98 and 4,361.85 is: 6,542.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.86 : 16,408.98 = 4,361.85 : x
  2. Step 2: Convert to fraction form
    10,939.86/16,408.98 = 4,361.85/x
  3. Step 3: Cross multiply
    10,939.86x = 16,408.98 × 4,361.85
  4. Step 4: Simplify right side
    10,939.86x = 71,573,509.41
  5. Step 5: Solve for x
    x = 71,573,509.41/10,939.86
  6. Step 6: Final answer
    x = 6,542.45

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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.