Home / 18,190.85-27,289.57-7,517.23

Finding the Fourth Proportional to 18,190.85, 27,289.57 and 7,517.23

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Solution

The fourth proportional to 18,190.85, 27,289.57 and 7,517.23 is: 11,277.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.85 : 27,289.57 = 7,517.23 : x
  2. Step 2: Convert to fraction form
    18,190.85/27,289.57 = 7,517.23/x
  3. Step 3: Cross multiply
    18,190.85x = 27,289.57 × 7,517.23
  4. Step 4: Simplify right side
    18,190.85x = 205,141,915.46
  5. Step 5: Solve for x
    x = 205,141,915.46/18,190.85
  6. Step 6: Final answer
    x = 11,277.21

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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.