Home / 7,105.32-10,625.99-5,439.96

Finding the Fourth Proportional to 7,105.32, 10,625.99 and 5,439.96

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Solution

The fourth proportional to 7,105.32, 10,625.99 and 5,439.96 is: 8,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.32 : 10,625.99 = 5,439.96 : x
  2. Step 2: Convert to fraction form
    7,105.32/10,625.99 = 5,439.96/x
  3. Step 3: Cross multiply
    7,105.32x = 10,625.99 × 5,439.96
  4. Step 4: Simplify right side
    7,105.32x = 57,804,933.36
  5. Step 5: Solve for x
    x = 57,804,933.36/7,105.32
  6. Step 6: Final answer
    x = 8,135.44

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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.