Home / 10,108.75-13,951.31-6,129.85

Finding the Fourth Proportional to 10,108.75, 13,951.31 and 6,129.85

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Solution

The fourth proportional to 10,108.75, 13,951.31 and 6,129.85 is: 8,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.75 : 13,951.31 = 6,129.85 : x
  2. Step 2: Convert to fraction form
    10,108.75/13,951.31 = 6,129.85/x
  3. Step 3: Cross multiply
    10,108.75x = 13,951.31 × 6,129.85
  4. Step 4: Simplify right side
    10,108.75x = 85,519,372.08
  5. Step 5: Solve for x
    x = 85,519,372.08/10,108.75
  6. Step 6: Final answer
    x = 8,459.94

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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.