Home / 8,138.31-11,230.53-4,601.43

Finding the Fourth Proportional to 8,138.31, 11,230.53 and 4,601.43

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Solution

The fourth proportional to 8,138.31, 11,230.53 and 4,601.43 is: 6,349.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.31 : 11,230.53 = 4,601.43 : x
  2. Step 2: Convert to fraction form
    8,138.31/11,230.53 = 4,601.43/x
  3. Step 3: Cross multiply
    8,138.31x = 11,230.53 × 4,601.43
  4. Step 4: Simplify right side
    8,138.31x = 51,676,497.66
  5. Step 5: Solve for x
    x = 51,676,497.66/8,138.31
  6. Step 6: Final answer
    x = 6,349.78

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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.