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Finding the Fourth Proportional to 19,701, 27,180.54 and 11,202.12

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Solution

The fourth proportional to 19,701, 27,180.54 and 11,202.12 is: 15,455.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701 : 27,180.54 = 11,202.12 : x
  2. Step 2: Convert to fraction form
    19,701/27,180.54 = 11,202.12/x
  3. Step 3: Cross multiply
    19,701x = 27,180.54 × 11,202.12
  4. Step 4: Simplify right side
    19,701x = 304,479,670.74
  5. Step 5: Solve for x
    x = 304,479,670.74/19,701
  6. Step 6: Final answer
    x = 15,455.04

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Double scale
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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.