Home / 18,515.96-27,755.47-11,946.75

Finding the Fourth Proportional to 18,515.96, 27,755.47 and 11,946.75

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Solution

The fourth proportional to 18,515.96, 27,755.47 and 11,946.75 is: 17,908.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.96 : 27,755.47 = 11,946.75 : x
  2. Step 2: Convert to fraction form
    18,515.96/27,755.47 = 11,946.75/x
  3. Step 3: Cross multiply
    18,515.96x = 27,755.47 × 11,946.75
  4. Step 4: Simplify right side
    18,515.96x = 331,587,601.49
  5. Step 5: Solve for x
    x = 331,587,601.49/18,515.96
  6. Step 6: Final answer
    x = 17,908.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.