Home / 11,121.52-16,663.08-5,911.60

Finding the Fourth Proportional to 11,121.52, 16,663.08 and 5,911.60

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Solution

The fourth proportional to 11,121.52, 16,663.08 and 5,911.60 is: 8,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.52 : 16,663.08 = 5,911.60 : x
  2. Step 2: Convert to fraction form
    11,121.52/16,663.08 = 5,911.60/x
  3. Step 3: Cross multiply
    11,121.52x = 16,663.08 × 5,911.60
  4. Step 4: Simplify right side
    11,121.52x = 98,505,463.73
  5. Step 5: Solve for x
    x = 98,505,463.73/11,121.52
  6. Step 6: Final answer
    x = 8,857.19

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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.