Home / 13,209.23-19,814.88-3,849.39

Finding the Fourth Proportional to 13,209.23, 19,814.88 and 3,849.39

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Solution

The fourth proportional to 13,209.23, 19,814.88 and 3,849.39 is: 5,774.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.23 : 19,814.88 = 3,849.39 : x
  2. Step 2: Convert to fraction form
    13,209.23/19,814.88 = 3,849.39/x
  3. Step 3: Cross multiply
    13,209.23x = 19,814.88 × 3,849.39
  4. Step 4: Simplify right side
    13,209.23x = 76,275,200.92
  5. Step 5: Solve for x
    x = 76,275,200.92/13,209.23
  6. Step 6: Final answer
    x = 5,774.39

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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.