Home / 10,800.38-16,190.85-4,231.28

Finding the Fourth Proportional to 10,800.38, 16,190.85 and 4,231.28

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Solution

The fourth proportional to 10,800.38, 16,190.85 and 4,231.28 is: 6,343.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,800.38 : 16,190.85 = 4,231.28 : x
  2. Step 2: Convert to fraction form
    10,800.38/16,190.85 = 4,231.28/x
  3. Step 3: Cross multiply
    10,800.38x = 16,190.85 × 4,231.28
  4. Step 4: Simplify right side
    10,800.38x = 68,508,019.79
  5. Step 5: Solve for x
    x = 68,508,019.79/10,800.38
  6. Step 6: Final answer
    x = 6,343.11

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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.