Home / 10,780.09-16,171.04-3,384.38

Finding the Fourth Proportional to 10,780.09, 16,171.04 and 3,384.38

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Solution

The fourth proportional to 10,780.09, 16,171.04 and 3,384.38 is: 5,076.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.09 : 16,171.04 = 3,384.38 : x
  2. Step 2: Convert to fraction form
    10,780.09/16,171.04 = 3,384.38/x
  3. Step 3: Cross multiply
    10,780.09x = 16,171.04 × 3,384.38
  4. Step 4: Simplify right side
    10,780.09x = 54,728,993.24
  5. Step 5: Solve for x
    x = 54,728,993.24/10,780.09
  6. Step 6: Final answer
    x = 5,076.86

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1.5x scale

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.