Home / 19,897.70-27,450.86-12,725.96

Finding the Fourth Proportional to 19,897.70, 27,450.86 and 12,725.96

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Solution

The fourth proportional to 19,897.70, 27,450.86 and 12,725.96 is: 17,556.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,897.70 : 27,450.86 = 12,725.96 : x
  2. Step 2: Convert to fraction form
    19,897.70/27,450.86 = 12,725.96/x
  3. Step 3: Cross multiply
    19,897.70x = 27,450.86 × 12,725.96
  4. Step 4: Simplify right side
    19,897.70x = 349,338,409.07
  5. Step 5: Solve for x
    x = 349,338,409.07/19,897.70
  6. Step 6: Final answer
    x = 17,556.73

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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.