Home / 10,747.71-16,120.26-6,811.11

Finding the Fourth Proportional to 10,747.71, 16,120.26 and 6,811.11

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Solution

The fourth proportional to 10,747.71, 16,120.26 and 6,811.11 is: 10,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.71 : 16,120.26 = 6,811.11 : x
  2. Step 2: Convert to fraction form
    10,747.71/16,120.26 = 6,811.11/x
  3. Step 3: Cross multiply
    10,747.71x = 16,120.26 × 6,811.11
  4. Step 4: Simplify right side
    10,747.71x = 109,796,864.09
  5. Step 5: Solve for x
    x = 109,796,864.09/10,747.71
  6. Step 6: Final answer
    x = 10,215.84

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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.