Home / 10,829.76-16,231.68-6,663.12

Finding the Fourth Proportional to 10,829.76, 16,231.68 and 6,663.12

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Solution

The fourth proportional to 10,829.76, 16,231.68 and 6,663.12 is: 9,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,829.76 : 16,231.68 = 6,663.12 : x
  2. Step 2: Convert to fraction form
    10,829.76/16,231.68 = 6,663.12/x
  3. Step 3: Cross multiply
    10,829.76x = 16,231.68 × 6,663.12
  4. Step 4: Simplify right side
    10,829.76x = 108,153,631.64
  5. Step 5: Solve for x
    x = 108,153,631.64/10,829.76
  6. Step 6: Final answer
    x = 9,986.71

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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.