Home / 19,205.21-28,788.66-9,191.49

Finding the Fourth Proportional to 19,205.21, 28,788.66 and 9,191.49

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Solution

The fourth proportional to 19,205.21, 28,788.66 and 9,191.49 is: 13,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,205.21 : 28,788.66 = 9,191.49 : x
  2. Step 2: Convert to fraction form
    19,205.21/28,788.66 = 9,191.49/x
  3. Step 3: Cross multiply
    19,205.21x = 28,788.66 × 9,191.49
  4. Step 4: Simplify right side
    19,205.21x = 264,610,572.55
  5. Step 5: Solve for x
    x = 264,610,572.55/19,205.21
  6. Step 6: Final answer
    x = 13,778.06

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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.