Home / 6,117.30-9,163.80-5,679.90

Finding the Fourth Proportional to 6,117.30, 9,163.80 and 5,679.90

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Solution

The fourth proportional to 6,117.30, 9,163.80 and 5,679.90 is: 8,508.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.30 : 9,163.80 = 5,679.90 : x
  2. Step 2: Convert to fraction form
    6,117.30/9,163.80 = 5,679.90/x
  3. Step 3: Cross multiply
    6,117.30x = 9,163.80 × 5,679.90
  4. Step 4: Simplify right side
    6,117.30x = 52,049,467.62
  5. Step 5: Solve for x
    x = 52,049,467.62/6,117.30
  6. Step 6: Final answer
    x = 8,508.57

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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.