Home / 14,272.75-21,408.61-3,742.69

Finding the Fourth Proportional to 14,272.75, 21,408.61 and 3,742.69

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Solution

The fourth proportional to 14,272.75, 21,408.61 and 3,742.69 is: 5,613.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.75 : 21,408.61 = 3,742.69 : x
  2. Step 2: Convert to fraction form
    14,272.75/21,408.61 = 3,742.69/x
  3. Step 3: Cross multiply
    14,272.75x = 21,408.61 × 3,742.69
  4. Step 4: Simplify right side
    14,272.75x = 80,125,664.80
  5. Step 5: Solve for x
    x = 80,125,664.80/14,272.75
  6. Step 6: Final answer
    x = 5,613.89

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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.