Home / 14,519.25-21,780.09-4,131

Finding the Fourth Proportional to 14,519.25, 21,780.09 and 4,131

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Solution

The fourth proportional to 14,519.25, 21,780.09 and 4,131 is: 6,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.25 : 21,780.09 = 4,131 : x
  2. Step 2: Convert to fraction form
    14,519.25/21,780.09 = 4,131/x
  3. Step 3: Cross multiply
    14,519.25x = 21,780.09 × 4,131
  4. Step 4: Simplify right side
    14,519.25x = 89,973,551.79
  5. Step 5: Solve for x
    x = 89,973,551.79/14,519.25
  6. Step 6: Final answer
    x = 6,196.85

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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.