Home / 8,705.15-13,055.28-3,367.09

Finding the Fourth Proportional to 8,705.15, 13,055.28 and 3,367.09

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Solution

The fourth proportional to 8,705.15, 13,055.28 and 3,367.09 is: 5,049.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.15 : 13,055.28 = 3,367.09 : x
  2. Step 2: Convert to fraction form
    8,705.15/13,055.28 = 3,367.09/x
  3. Step 3: Cross multiply
    8,705.15x = 13,055.28 × 3,367.09
  4. Step 4: Simplify right side
    8,705.15x = 43,958,343.15
  5. Step 5: Solve for x
    x = 43,958,343.15/8,705.15
  6. Step 6: Final answer
    x = 5,049.70

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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.