Home / 7,917.75-11,878.65-2,723.76

Finding the Fourth Proportional to 7,917.75, 11,878.65 and 2,723.76

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Solution

The fourth proportional to 7,917.75, 11,878.65 and 2,723.76 is: 4,086.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,917.75 : 11,878.65 = 2,723.76 : x
  2. Step 2: Convert to fraction form
    7,917.75/11,878.65 = 2,723.76/x
  3. Step 3: Cross multiply
    7,917.75x = 11,878.65 × 2,723.76
  4. Step 4: Simplify right side
    7,917.75x = 32,354,591.72
  5. Step 5: Solve for x
    x = 32,354,591.72/7,917.75
  6. Step 6: Final answer
    x = 4,086.34

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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.