Home / 13,377.15-20,054.79-6,811.29

Finding the Fourth Proportional to 13,377.15, 20,054.79 and 6,811.29

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Solution

The fourth proportional to 13,377.15, 20,054.79 and 6,811.29 is: 10,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.15 : 20,054.79 = 6,811.29 : x
  2. Step 2: Convert to fraction form
    13,377.15/20,054.79 = 6,811.29/x
  3. Step 3: Cross multiply
    13,377.15x = 20,054.79 × 6,811.29
  4. Step 4: Simplify right side
    13,377.15x = 136,598,990.58
  5. Step 5: Solve for x
    x = 136,598,990.58/13,377.15
  6. Step 6: Final answer
    x = 10,211.37

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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.