Home / 8,935.20-12,324.42-5,393.88

Finding the Fourth Proportional to 8,935.20, 12,324.42 and 5,393.88

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Solution

The fourth proportional to 8,935.20, 12,324.42 and 5,393.88 is: 7,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,935.20 : 12,324.42 = 5,393.88 : x
  2. Step 2: Convert to fraction form
    8,935.20/12,324.42 = 5,393.88/x
  3. Step 3: Cross multiply
    8,935.20x = 12,324.42 × 5,393.88
  4. Step 4: Simplify right side
    8,935.20x = 66,476,442.55
  5. Step 5: Solve for x
    x = 66,476,442.55/8,935.20
  6. Step 6: Final answer
    x = 7,439.84

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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.