Home / 19,765.85-27,283.82-12,217.97

Finding the Fourth Proportional to 19,765.85, 27,283.82 and 12,217.97

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Solution

The fourth proportional to 19,765.85, 27,283.82 and 12,217.97 is: 16,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,765.85 : 27,283.82 = 12,217.97 : x
  2. Step 2: Convert to fraction form
    19,765.85/27,283.82 = 12,217.97/x
  3. Step 3: Cross multiply
    19,765.85x = 27,283.82 × 12,217.97
  4. Step 4: Simplify right side
    19,765.85x = 333,352,696.74
  5. Step 5: Solve for x
    x = 333,352,696.74/19,765.85
  6. Step 6: Final answer
    x = 16,865.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.