Home / 19,655.42-27,120.24-11,696.09

Finding the Fourth Proportional to 19,655.42, 27,120.24 and 11,696.09

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Solution

The fourth proportional to 19,655.42, 27,120.24 and 11,696.09 is: 16,138.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.42 : 27,120.24 = 11,696.09 : x
  2. Step 2: Convert to fraction form
    19,655.42/27,120.24 = 11,696.09/x
  3. Step 3: Cross multiply
    19,655.42x = 27,120.24 × 11,696.09
  4. Step 4: Simplify right side
    19,655.42x = 317,200,767.86
  5. Step 5: Solve for x
    x = 317,200,767.86/19,655.42
  6. Step 6: Final answer
    x = 16,138.08

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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.