Home / 19,691.45-27,173.12-11,192.39

Finding the Fourth Proportional to 19,691.45, 27,173.12 and 11,192.39

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Solution

The fourth proportional to 19,691.45, 27,173.12 and 11,192.39 is: 15,444.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.45 : 27,173.12 = 11,192.39 : x
  2. Step 2: Convert to fraction form
    19,691.45/27,173.12 = 11,192.39/x
  3. Step 3: Cross multiply
    19,691.45x = 27,173.12 × 11,192.39
  4. Step 4: Simplify right side
    19,691.45x = 304,132,206.01
  5. Step 5: Solve for x
    x = 304,132,206.01/19,691.45
  6. Step 6: Final answer
    x = 15,444.89

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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.