Home / 10,939.08-16,358.46-8,167.56

Finding the Fourth Proportional to 10,939.08, 16,358.46 and 8,167.56

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Solution

The fourth proportional to 10,939.08, 16,358.46 and 8,167.56 is: 12,213.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.08 : 16,358.46 = 8,167.56 : x
  2. Step 2: Convert to fraction form
    10,939.08/16,358.46 = 8,167.56/x
  3. Step 3: Cross multiply
    10,939.08x = 16,358.46 × 8,167.56
  4. Step 4: Simplify right side
    10,939.08x = 133,608,703.56
  5. Step 5: Solve for x
    x = 133,608,703.56/10,939.08
  6. Step 6: Final answer
    x = 12,213.89

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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.