Home / 9,190.18-12,682.73-5,211.46

Finding the Fourth Proportional to 9,190.18, 12,682.73 and 5,211.46

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Solution

The fourth proportional to 9,190.18, 12,682.73 and 5,211.46 is: 7,191.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.18 : 12,682.73 = 5,211.46 : x
  2. Step 2: Convert to fraction form
    9,190.18/12,682.73 = 5,211.46/x
  3. Step 3: Cross multiply
    9,190.18x = 12,682.73 × 5,211.46
  4. Step 4: Simplify right side
    9,190.18x = 66,095,540.09
  5. Step 5: Solve for x
    x = 66,095,540.09/9,190.18
  6. Step 6: Final answer
    x = 7,191.97

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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.