Home / 7,836.58-11,757.82-4,718.78

Finding the Fourth Proportional to 7,836.58, 11,757.82 and 4,718.78

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Solution

The fourth proportional to 7,836.58, 11,757.82 and 4,718.78 is: 7,079.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,836.58 : 11,757.82 = 4,718.78 : x
  2. Step 2: Convert to fraction form
    7,836.58/11,757.82 = 4,718.78/x
  3. Step 3: Cross multiply
    7,836.58x = 11,757.82 × 4,718.78
  4. Step 4: Simplify right side
    7,836.58x = 55,482,565.86
  5. Step 5: Solve for x
    x = 55,482,565.86/7,836.58
  6. Step 6: Final answer
    x = 7,079.95

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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.