Home / 12,375.27-17,077.85-7,069.97

Finding the Fourth Proportional to 12,375.27, 17,077.85 and 7,069.97

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Solution

The fourth proportional to 12,375.27, 17,077.85 and 7,069.97 is: 9,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.27 : 17,077.85 = 7,069.97 : x
  2. Step 2: Convert to fraction form
    12,375.27/17,077.85 = 7,069.97/x
  3. Step 3: Cross multiply
    12,375.27x = 17,077.85 × 7,069.97
  4. Step 4: Simplify right side
    12,375.27x = 120,739,766.43
  5. Step 5: Solve for x
    x = 120,739,766.43/12,375.27
  6. Step 6: Final answer
    x = 9,756.54

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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.