Home / 19,965.21-27,553.53-11,013.49

Finding the Fourth Proportional to 19,965.21, 27,553.53 and 11,013.49

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Solution

The fourth proportional to 19,965.21, 27,553.53 and 11,013.49 is: 15,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,965.21 : 27,553.53 = 11,013.49 : x
  2. Step 2: Convert to fraction form
    19,965.21/27,553.53 = 11,013.49/x
  3. Step 3: Cross multiply
    19,965.21x = 27,553.53 × 11,013.49
  4. Step 4: Simplify right side
    19,965.21x = 303,460,527.12
  5. Step 5: Solve for x
    x = 303,460,527.12/19,965.21
  6. Step 6: Final answer
    x = 15,199.47

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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.