Home / 7,910.12-11,857.74-2,712.28

Finding the Fourth Proportional to 7,910.12, 11,857.74 and 2,712.28

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Solution

The fourth proportional to 7,910.12, 11,857.74 and 2,712.28 is: 4,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910.12 : 11,857.74 = 2,712.28 : x
  2. Step 2: Convert to fraction form
    7,910.12/11,857.74 = 2,712.28/x
  3. Step 3: Cross multiply
    7,910.12x = 11,857.74 × 2,712.28
  4. Step 4: Simplify right side
    7,910.12x = 32,161,511.05
  5. Step 5: Solve for x
    x = 32,161,511.05/7,910.12
  6. Step 6: Final answer
    x = 4,065.87

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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.