Home / 18,631.32-27,958.87-6,783.95

Finding the Fourth Proportional to 18,631.32, 27,958.87 and 6,783.95

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Solution

The fourth proportional to 18,631.32, 27,958.87 and 6,783.95 is: 10,180.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.32 : 27,958.87 = 6,783.95 : x
  2. Step 2: Convert to fraction form
    18,631.32/27,958.87 = 6,783.95/x
  3. Step 3: Cross multiply
    18,631.32x = 27,958.87 × 6,783.95
  4. Step 4: Simplify right side
    18,631.32x = 189,671,654.51
  5. Step 5: Solve for x
    x = 189,671,654.51/18,631.32
  6. Step 6: Final answer
    x = 10,180.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.