Home / 8,116.86-12,175.38-6,939.24

Finding the Fourth Proportional to 8,116.86, 12,175.38 and 6,939.24

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Solution

The fourth proportional to 8,116.86, 12,175.38 and 6,939.24 is: 10,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,116.86 : 12,175.38 = 6,939.24 : x
  2. Step 2: Convert to fraction form
    8,116.86/12,175.38 = 6,939.24/x
  3. Step 3: Cross multiply
    8,116.86x = 12,175.38 × 6,939.24
  4. Step 4: Simplify right side
    8,116.86x = 84,487,883.91
  5. Step 5: Solve for x
    x = 84,487,883.91/8,116.86
  6. Step 6: Final answer
    x = 10,408.94

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1.5x scale

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.