Home / 12,876.97-19,313.18-5,855.33

Finding the Fourth Proportional to 12,876.97, 19,313.18 and 5,855.33

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Solution

The fourth proportional to 12,876.97, 19,313.18 and 5,855.33 is: 8,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.97 : 19,313.18 = 5,855.33 : x
  2. Step 2: Convert to fraction form
    12,876.97/19,313.18 = 5,855.33/x
  3. Step 3: Cross multiply
    12,876.97x = 19,313.18 × 5,855.33
  4. Step 4: Simplify right side
    12,876.97x = 113,085,012.97
  5. Step 5: Solve for x
    x = 113,085,012.97/12,876.97
  6. Step 6: Final answer
    x = 8,781.96

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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.