Home / 11,331.10-16,977.47-6,939.38

Finding the Fourth Proportional to 11,331.10, 16,977.47 and 6,939.38

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Solution

The fourth proportional to 11,331.10, 16,977.47 and 6,939.38 is: 10,397.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.10 : 16,977.47 = 6,939.38 : x
  2. Step 2: Convert to fraction form
    11,331.10/16,977.47 = 6,939.38/x
  3. Step 3: Cross multiply
    11,331.10x = 16,977.47 × 6,939.38
  4. Step 4: Simplify right side
    11,331.10x = 117,813,081.07
  5. Step 5: Solve for x
    x = 117,813,081.07/11,331.10
  6. Step 6: Final answer
    x = 10,397.33

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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.