Home / 10,861.28-16,319.25-6,914.36

Finding the Fourth Proportional to 10,861.28, 16,319.25 and 6,914.36

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Solution

The fourth proportional to 10,861.28, 16,319.25 and 6,914.36 is: 10,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.28 : 16,319.25 = 6,914.36 : x
  2. Step 2: Convert to fraction form
    10,861.28/16,319.25 = 6,914.36/x
  3. Step 3: Cross multiply
    10,861.28x = 16,319.25 × 6,914.36
  4. Step 4: Simplify right side
    10,861.28x = 112,837,087.83
  5. Step 5: Solve for x
    x = 112,837,087.83/10,861.28
  6. Step 6: Final answer
    x = 10,388.94

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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.