Home / 7,891.86-11,836.58-4,961.22

Finding the Fourth Proportional to 7,891.86, 11,836.58 and 4,961.22

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Solution

The fourth proportional to 7,891.86, 11,836.58 and 4,961.22 is: 7,441.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.86 : 11,836.58 = 4,961.22 : x
  2. Step 2: Convert to fraction form
    7,891.86/11,836.58 = 4,961.22/x
  3. Step 3: Cross multiply
    7,891.86x = 11,836.58 × 4,961.22
  4. Step 4: Simplify right side
    7,891.86x = 58,723,877.43
  5. Step 5: Solve for x
    x = 58,723,877.43/7,891.86
  6. Step 6: Final answer
    x = 7,441.07

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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.