Home / 7,769.91-11,654.56-3,089.73

Finding the Fourth Proportional to 7,769.91, 11,654.56 and 3,089.73

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Solution

The fourth proportional to 7,769.91, 11,654.56 and 3,089.73 is: 4,634.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,769.91 : 11,654.56 = 3,089.73 : x
  2. Step 2: Convert to fraction form
    7,769.91/11,654.56 = 3,089.73/x
  3. Step 3: Cross multiply
    7,769.91x = 11,654.56 × 3,089.73
  4. Step 4: Simplify right side
    7,769.91x = 36,009,443.67
  5. Step 5: Solve for x
    x = 36,009,443.67/7,769.91
  6. Step 6: Final answer
    x = 4,634.47

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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.