Home / 12,205.96-18,308.76-3,886.48

Finding the Fourth Proportional to 12,205.96, 18,308.76 and 3,886.48

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Solution

The fourth proportional to 12,205.96, 18,308.76 and 3,886.48 is: 5,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.96 : 18,308.76 = 3,886.48 : x
  2. Step 2: Convert to fraction form
    12,205.96/18,308.76 = 3,886.48/x
  3. Step 3: Cross multiply
    12,205.96x = 18,308.76 × 3,886.48
  4. Step 4: Simplify right side
    12,205.96x = 71,156,629.56
  5. Step 5: Solve for x
    x = 71,156,629.56/12,205.96
  6. Step 6: Final answer
    x = 5,829.66

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1.5x scale

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.