Home / 13,205.96-19,709.72-11,419.12

Finding the Fourth Proportional to 13,205.96, 19,709.72 and 11,419.12

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Solution

The fourth proportional to 13,205.96, 19,709.72 and 11,419.12 is: 17,042.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,205.96 : 19,709.72 = 11,419.12 : x
  2. Step 2: Convert to fraction form
    13,205.96/19,709.72 = 11,419.12/x
  3. Step 3: Cross multiply
    13,205.96x = 19,709.72 × 11,419.12
  4. Step 4: Simplify right side
    13,205.96x = 225,067,657.85
  5. Step 5: Solve for x
    x = 225,067,657.85/13,205.96
  6. Step 6: Final answer
    x = 17,042.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.