Home / 13,356.06-20,046.33-6,786.78

Finding the Fourth Proportional to 13,356.06, 20,046.33 and 6,786.78

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Solution

The fourth proportional to 13,356.06, 20,046.33 and 6,786.78 is: 10,186.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.06 : 20,046.33 = 6,786.78 : x
  2. Step 2: Convert to fraction form
    13,356.06/20,046.33 = 6,786.78/x
  3. Step 3: Cross multiply
    13,356.06x = 20,046.33 × 6,786.78
  4. Step 4: Simplify right side
    13,356.06x = 136,050,031.52
  5. Step 5: Solve for x
    x = 136,050,031.52/13,356.06
  6. Step 6: Final answer
    x = 10,186.39

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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.