Home / 19,691.41-27,175.76-11,196.20

Finding the Fourth Proportional to 19,691.41, 27,175.76 and 11,196.20

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Solution

The fourth proportional to 19,691.41, 27,175.76 and 11,196.20 is: 15,451.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.41 : 27,175.76 = 11,196.20 : x
  2. Step 2: Convert to fraction form
    19,691.41/27,175.76 = 11,196.20/x
  3. Step 3: Cross multiply
    19,691.41x = 27,175.76 × 11,196.20
  4. Step 4: Simplify right side
    19,691.41x = 304,265,094.24
  5. Step 5: Solve for x
    x = 304,265,094.24/19,691.41
  6. Step 6: Final answer
    x = 15,451.67

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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.