Home / 11,822.40-16,318.32-8,286.48

Finding the Fourth Proportional to 11,822.40, 16,318.32 and 8,286.48

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Solution

The fourth proportional to 11,822.40, 16,318.32 and 8,286.48 is: 11,437.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.40 : 16,318.32 = 8,286.48 : x
  2. Step 2: Convert to fraction form
    11,822.40/16,318.32 = 8,286.48/x
  3. Step 3: Cross multiply
    11,822.40x = 16,318.32 × 8,286.48
  4. Step 4: Simplify right side
    11,822.40x = 135,221,432.31
  5. Step 5: Solve for x
    x = 135,221,432.31/11,822.40
  6. Step 6: Final answer
    x = 11,437.73

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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.