Home / 18,255.69-27,364.85-7,147.25

Finding the Fourth Proportional to 18,255.69, 27,364.85 and 7,147.25

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Solution

The fourth proportional to 18,255.69, 27,364.85 and 7,147.25 is: 10,713.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.69 : 27,364.85 = 7,147.25 : x
  2. Step 2: Convert to fraction form
    18,255.69/27,364.85 = 7,147.25/x
  3. Step 3: Cross multiply
    18,255.69x = 27,364.85 × 7,147.25
  4. Step 4: Simplify right side
    18,255.69x = 195,583,251.60
  5. Step 5: Solve for x
    x = 195,583,251.60/18,255.69
  6. Step 6: Final answer
    x = 10,713.55

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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.