Home / 12,805.83-19,195.60-4,906.21

Finding the Fourth Proportional to 12,805.83, 19,195.60 and 4,906.21

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Solution

The fourth proportional to 12,805.83, 19,195.60 and 4,906.21 is: 7,354.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,805.83 : 19,195.60 = 4,906.21 : x
  2. Step 2: Convert to fraction form
    12,805.83/19,195.60 = 4,906.21/x
  3. Step 3: Cross multiply
    12,805.83x = 19,195.60 × 4,906.21
  4. Step 4: Simplify right side
    12,805.83x = 94,177,581.92
  5. Step 5: Solve for x
    x = 94,177,581.92/12,805.83
  6. Step 6: Final answer
    x = 7,354.27

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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.