Home / 19,686.42-27,166.23-11,187.41

Finding the Fourth Proportional to 19,686.42, 27,166.23 and 11,187.41

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Solution

The fourth proportional to 19,686.42, 27,166.23 and 11,187.41 is: 15,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.42 : 27,166.23 = 11,187.41 : x
  2. Step 2: Convert to fraction form
    19,686.42/27,166.23 = 11,187.41/x
  3. Step 3: Cross multiply
    19,686.42x = 27,166.23 × 11,187.41
  4. Step 4: Simplify right side
    19,686.42x = 303,919,617.33
  5. Step 5: Solve for x
    x = 303,919,617.33/19,686.42
  6. Step 6: Final answer
    x = 15,438.03

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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.