Home / 13,009.62-19,514.40-5,212.96

Finding the Fourth Proportional to 13,009.62, 19,514.40 and 5,212.96

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Solution

The fourth proportional to 13,009.62, 19,514.40 and 5,212.96 is: 7,819.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.62 : 19,514.40 = 5,212.96 : x
  2. Step 2: Convert to fraction form
    13,009.62/19,514.40 = 5,212.96/x
  3. Step 3: Cross multiply
    13,009.62x = 19,514.40 × 5,212.96
  4. Step 4: Simplify right side
    13,009.62x = 101,727,786.62
  5. Step 5: Solve for x
    x = 101,727,786.62/13,009.62
  6. Step 6: Final answer
    x = 7,819.43

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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.