Home / 19,759.85-27,275.54-12,211.97

Finding the Fourth Proportional to 19,759.85, 27,275.54 and 12,211.97

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Solution

The fourth proportional to 19,759.85, 27,275.54 and 12,211.97 is: 16,856.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.85 : 27,275.54 = 12,211.97 : x
  2. Step 2: Convert to fraction form
    19,759.85/27,275.54 = 12,211.97/x
  3. Step 3: Cross multiply
    19,759.85x = 27,275.54 × 12,211.97
  4. Step 4: Simplify right side
    19,759.85x = 333,087,878.78
  5. Step 5: Solve for x
    x = 333,087,878.78/19,759.85
  6. Step 6: Final answer
    x = 16,856.80

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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.