Home / 13,187.35-19,749.84-11,446.57

Finding the Fourth Proportional to 13,187.35, 19,749.84 and 11,446.57

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Solution

The fourth proportional to 13,187.35, 19,749.84 and 11,446.57 is: 17,142.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.35 : 19,749.84 = 11,446.57 : x
  2. Step 2: Convert to fraction form
    13,187.35/19,749.84 = 11,446.57/x
  3. Step 3: Cross multiply
    13,187.35x = 19,749.84 × 11,446.57
  4. Step 4: Simplify right side
    13,187.35x = 226,067,926.05
  5. Step 5: Solve for x
    x = 226,067,926.05/13,187.35
  6. Step 6: Final answer
    x = 17,142.79

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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.