Home / 11,331.19-16,977.98-6,939.42

Finding the Fourth Proportional to 11,331.19, 16,977.98 and 6,939.42

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Solution

The fourth proportional to 11,331.19, 16,977.98 and 6,939.42 is: 10,397.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.19 : 16,977.98 = 6,939.42 : x
  2. Step 2: Convert to fraction form
    11,331.19/16,977.98 = 6,939.42/x
  3. Step 3: Cross multiply
    11,331.19x = 16,977.98 × 6,939.42
  4. Step 4: Simplify right side
    11,331.19x = 117,817,363.64
  5. Step 5: Solve for x
    x = 117,817,363.64/11,331.19
  6. Step 6: Final answer
    x = 10,397.61

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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.