Home / 6,780.73-10,104.55-6,557.79

Finding the Fourth Proportional to 6,780.73, 10,104.55 and 6,557.79

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Solution

The fourth proportional to 6,780.73, 10,104.55 and 6,557.79 is: 9,772.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.73 : 10,104.55 = 6,557.79 : x
  2. Step 2: Convert to fraction form
    6,780.73/10,104.55 = 6,557.79/x
  3. Step 3: Cross multiply
    6,780.73x = 10,104.55 × 6,557.79
  4. Step 4: Simplify right side
    6,780.73x = 66,263,516.94
  5. Step 5: Solve for x
    x = 66,263,516.94/6,780.73
  6. Step 6: Final answer
    x = 9,772.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.