Home / 19,718.41-27,211.43-12,644.83

Finding the Fourth Proportional to 19,718.41, 27,211.43 and 12,644.83

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Solution

The fourth proportional to 19,718.41, 27,211.43 and 12,644.83 is: 17,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.41 : 27,211.43 = 12,644.83 : x
  2. Step 2: Convert to fraction form
    19,718.41/27,211.43 = 12,644.83/x
  3. Step 3: Cross multiply
    19,718.41x = 27,211.43 × 12,644.83
  4. Step 4: Simplify right side
    19,718.41x = 344,083,906.41
  5. Step 5: Solve for x
    x = 344,083,906.41/19,718.41
  6. Step 6: Final answer
    x = 17,449.88

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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.