Home / 19,691.34-27,173.40-11,729.46

Finding the Fourth Proportional to 19,691.34, 27,173.40 and 11,729.46

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Solution

The fourth proportional to 19,691.34, 27,173.40 and 11,729.46 is: 16,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.34 : 27,173.40 = 11,729.46 : x
  2. Step 2: Convert to fraction form
    19,691.34/27,173.40 = 11,729.46/x
  3. Step 3: Cross multiply
    19,691.34x = 27,173.40 × 11,729.46
  4. Step 4: Simplify right side
    19,691.34x = 318,729,308.36
  5. Step 5: Solve for x
    x = 318,729,308.36/19,691.34
  6. Step 6: Final answer
    x = 16,186.27

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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.