Home / 7,789.76-11,671.35-4,282.71

Finding the Fourth Proportional to 7,789.76, 11,671.35 and 4,282.71

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Solution

The fourth proportional to 7,789.76, 11,671.35 and 4,282.71 is: 6,416.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.76 : 11,671.35 = 4,282.71 : x
  2. Step 2: Convert to fraction form
    7,789.76/11,671.35 = 4,282.71/x
  3. Step 3: Cross multiply
    7,789.76x = 11,671.35 × 4,282.71
  4. Step 4: Simplify right side
    7,789.76x = 49,984,959.58
  5. Step 5: Solve for x
    x = 49,984,959.58/7,789.76
  6. Step 6: Final answer
    x = 6,416.75

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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.