Home / 11,513.73-17,231.72-7,134.87

Finding the Fourth Proportional to 11,513.73, 17,231.72 and 7,134.87

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Solution

The fourth proportional to 11,513.73, 17,231.72 and 7,134.87 is: 10,678.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.73 : 17,231.72 = 7,134.87 : x
  2. Step 2: Convert to fraction form
    11,513.73/17,231.72 = 7,134.87/x
  3. Step 3: Cross multiply
    11,513.73x = 17,231.72 × 7,134.87
  4. Step 4: Simplify right side
    11,513.73x = 122,946,046.40
  5. Step 5: Solve for x
    x = 122,946,046.40/11,513.73
  6. Step 6: Final answer
    x = 10,678.21

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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.