Home / 11,954.12-17,930.10-3,188.75

Finding the Fourth Proportional to 11,954.12, 17,930.10 and 3,188.75

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Solution

The fourth proportional to 11,954.12, 17,930.10 and 3,188.75 is: 4,782.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.12 : 17,930.10 = 3,188.75 : x
  2. Step 2: Convert to fraction form
    11,954.12/17,930.10 = 3,188.75/x
  3. Step 3: Cross multiply
    11,954.12x = 17,930.10 × 3,188.75
  4. Step 4: Simplify right side
    11,954.12x = 57,174,606.38
  5. Step 5: Solve for x
    x = 57,174,606.38/11,954.12
  6. Step 6: Final answer
    x = 4,782.84

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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.