Home / 18,243.90-27,366.66-7,149.60

Finding the Fourth Proportional to 18,243.90, 27,366.66 and 7,149.60

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Solution

The fourth proportional to 18,243.90, 27,366.66 and 7,149.60 is: 10,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.90 : 27,366.66 = 7,149.60 : x
  2. Step 2: Convert to fraction form
    18,243.90/27,366.66 = 7,149.60/x
  3. Step 3: Cross multiply
    18,243.90x = 27,366.66 × 7,149.60
  4. Step 4: Simplify right side
    18,243.90x = 195,660,672.34
  5. Step 5: Solve for x
    x = 195,660,672.34/18,243.90
  6. Step 6: Final answer
    x = 10,724.72

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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.