Home / 11,860.67-16,367.73-7,145.87

Finding the Fourth Proportional to 11,860.67, 16,367.73 and 7,145.87

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Solution

The fourth proportional to 11,860.67, 16,367.73 and 7,145.87 is: 9,861.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,860.67 : 16,367.73 = 7,145.87 : x
  2. Step 2: Convert to fraction form
    11,860.67/16,367.73 = 7,145.87/x
  3. Step 3: Cross multiply
    11,860.67x = 16,367.73 × 7,145.87
  4. Step 4: Simplify right side
    11,860.67x = 116,961,553.21
  5. Step 5: Solve for x
    x = 116,961,553.21/11,860.67
  6. Step 6: Final answer
    x = 9,861.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.