Home / 7,976.12-11,006.88-4,439.12

Finding the Fourth Proportional to 7,976.12, 11,006.88 and 4,439.12

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Solution

The fourth proportional to 7,976.12, 11,006.88 and 4,439.12 is: 6,125.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.12 : 11,006.88 = 4,439.12 : x
  2. Step 2: Convert to fraction form
    7,976.12/11,006.88 = 4,439.12/x
  3. Step 3: Cross multiply
    7,976.12x = 11,006.88 × 4,439.12
  4. Step 4: Simplify right side
    7,976.12x = 48,860,861.15
  5. Step 5: Solve for x
    x = 48,860,861.15/7,976.12
  6. Step 6: Final answer
    x = 6,125.89

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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.