Home / 7,709.38-11,562.80-2,162.75

Finding the Fourth Proportional to 7,709.38, 11,562.80 and 2,162.75

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Solution

The fourth proportional to 7,709.38, 11,562.80 and 2,162.75 is: 3,243.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,709.38 : 11,562.80 = 2,162.75 : x
  2. Step 2: Convert to fraction form
    7,709.38/11,562.80 = 2,162.75/x
  3. Step 3: Cross multiply
    7,709.38x = 11,562.80 × 2,162.75
  4. Step 4: Simplify right side
    7,709.38x = 25,007,454.28
  5. Step 5: Solve for x
    x = 25,007,454.28/7,709.38
  6. Step 6: Final answer
    x = 3,243.77

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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.