Home / 19,672.78-27,145.26-11,714.80

Finding the Fourth Proportional to 19,672.78, 27,145.26 and 11,714.80

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Solution

The fourth proportional to 19,672.78, 27,145.26 and 11,714.80 is: 16,164.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.78 : 27,145.26 = 11,714.80 : x
  2. Step 2: Convert to fraction form
    19,672.78/27,145.26 = 11,714.80/x
  3. Step 3: Cross multiply
    19,672.78x = 27,145.26 × 11,714.80
  4. Step 4: Simplify right side
    19,672.78x = 318,001,291.85
  5. Step 5: Solve for x
    x = 318,001,291.85/19,672.78
  6. Step 6: Final answer
    x = 16,164.53

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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.