Home / 9,190.32-12,682.44-5,211.36

Finding the Fourth Proportional to 9,190.32, 12,682.44 and 5,211.36

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Solution

The fourth proportional to 9,190.32, 12,682.44 and 5,211.36 is: 7,191.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.32 : 12,682.44 = 5,211.36 : x
  2. Step 2: Convert to fraction form
    9,190.32/12,682.44 = 5,211.36/x
  3. Step 3: Cross multiply
    9,190.32x = 12,682.44 × 5,211.36
  4. Step 4: Simplify right side
    9,190.32x = 66,092,760.52
  5. Step 5: Solve for x
    x = 66,092,760.52/9,190.32
  6. Step 6: Final answer
    x = 7,191.56

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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.