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Finding the Fourth Proportional to 6,761.36, 9,322.18 and 5,169.96

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Solution

The fourth proportional to 6,761.36, 9,322.18 and 5,169.96 is: 7,128.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,761.36 : 9,322.18 = 5,169.96 : x
  2. Step 2: Convert to fraction form
    6,761.36/9,322.18 = 5,169.96/x
  3. Step 3: Cross multiply
    6,761.36x = 9,322.18 × 5,169.96
  4. Step 4: Simplify right side
    6,761.36x = 48,195,297.71
  5. Step 5: Solve for x
    x = 48,195,297.71/6,761.36
  6. Step 6: Final answer
    x = 7,128.05

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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.