Home / 18,380.64-25,366.32-9,996.96

Finding the Fourth Proportional to 18,380.64, 25,366.32 and 9,996.96

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Solution

The fourth proportional to 18,380.64, 25,366.32 and 9,996.96 is: 13,796.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,380.64 : 25,366.32 = 9,996.96 : x
  2. Step 2: Convert to fraction form
    18,380.64/25,366.32 = 9,996.96/x
  3. Step 3: Cross multiply
    18,380.64x = 25,366.32 × 9,996.96
  4. Step 4: Simplify right side
    18,380.64x = 253,586,086.39
  5. Step 5: Solve for x
    x = 253,586,086.39/18,380.64
  6. Step 6: Final answer
    x = 13,796.37

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Half scale
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Double scale
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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.