Home / 8,418.15-11,610.77-6,179.31

Finding the Fourth Proportional to 8,418.15, 11,610.77 and 6,179.31

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Solution

The fourth proportional to 8,418.15, 11,610.77 and 6,179.31 is: 8,522.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.15 : 11,610.77 = 6,179.31 : x
  2. Step 2: Convert to fraction form
    8,418.15/11,610.77 = 6,179.31/x
  3. Step 3: Cross multiply
    8,418.15x = 11,610.77 × 6,179.31
  4. Step 4: Simplify right side
    8,418.15x = 71,746,516.27
  5. Step 5: Solve for x
    x = 71,746,516.27/8,418.15
  6. Step 6: Final answer
    x = 8,522.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.