Home / 7,847.12-10,828.68-4,310.12

Finding the Fourth Proportional to 7,847.12, 10,828.68 and 4,310.12

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Solution

The fourth proportional to 7,847.12, 10,828.68 and 4,310.12 is: 5,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.12 : 10,828.68 = 4,310.12 : x
  2. Step 2: Convert to fraction form
    7,847.12/10,828.68 = 4,310.12/x
  3. Step 3: Cross multiply
    7,847.12x = 10,828.68 × 4,310.12
  4. Step 4: Simplify right side
    7,847.12x = 46,672,910.24
  5. Step 5: Solve for x
    x = 46,672,910.24/7,847.12
  6. Step 6: Final answer
    x = 5,947.78

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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.