Home / 18,684.60-25,783.98-11,960.76

Finding the Fourth Proportional to 18,684.60, 25,783.98 and 11,960.76

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Solution

The fourth proportional to 18,684.60, 25,783.98 and 11,960.76 is: 16,505.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.60 : 25,783.98 = 11,960.76 : x
  2. Step 2: Convert to fraction form
    18,684.60/25,783.98 = 11,960.76/x
  3. Step 3: Cross multiply
    18,684.60x = 25,783.98 × 11,960.76
  4. Step 4: Simplify right side
    18,684.60x = 308,395,996.62
  5. Step 5: Solve for x
    x = 308,395,996.62/18,684.60
  6. Step 6: Final answer
    x = 16,505.36

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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.