Home / 19,688.19-27,172.82-11,735.03

Finding the Fourth Proportional to 19,688.19, 27,172.82 and 11,735.03

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Solution

The fourth proportional to 19,688.19, 27,172.82 and 11,735.03 is: 16,196.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.19 : 27,172.82 = 11,735.03 : x
  2. Step 2: Convert to fraction form
    19,688.19/27,172.82 = 11,735.03/x
  3. Step 3: Cross multiply
    19,688.19x = 27,172.82 × 11,735.03
  4. Step 4: Simplify right side
    19,688.19x = 318,873,857.88
  5. Step 5: Solve for x
    x = 318,873,857.88/19,688.19
  6. Step 6: Final answer
    x = 16,196.20

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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.