Home / 7,780.79-11,673.97-3,336.59

Finding the Fourth Proportional to 7,780.79, 11,673.97 and 3,336.59

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Solution

The fourth proportional to 7,780.79, 11,673.97 and 3,336.59 is: 5,006.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,780.79 : 11,673.97 = 3,336.59 : x
  2. Step 2: Convert to fraction form
    7,780.79/11,673.97 = 3,336.59/x
  3. Step 3: Cross multiply
    7,780.79x = 11,673.97 × 3,336.59
  4. Step 4: Simplify right side
    7,780.79x = 38,951,251.56
  5. Step 5: Solve for x
    x = 38,951,251.56/7,780.79
  6. Step 6: Final answer
    x = 5,006.08

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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.