Home / 18,631.27-27,949.40-6,783.50

Finding the Fourth Proportional to 18,631.27, 27,949.40 and 6,783.50

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Solution

The fourth proportional to 18,631.27, 27,949.40 and 6,783.50 is: 10,176.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.27 : 27,949.40 = 6,783.50 : x
  2. Step 2: Convert to fraction form
    18,631.27/27,949.40 = 6,783.50/x
  3. Step 3: Cross multiply
    18,631.27x = 27,949.40 × 6,783.50
  4. Step 4: Simplify right side
    18,631.27x = 189,594,754.90
  5. Step 5: Solve for x
    x = 189,594,754.90/18,631.27
  6. Step 6: Final answer
    x = 10,176.16

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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.