Home / 7,811.87-11,717.46-2,265.09

Finding the Fourth Proportional to 7,811.87, 11,717.46 and 2,265.09

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Solution

The fourth proportional to 7,811.87, 11,717.46 and 2,265.09 is: 3,397.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.87 : 11,717.46 = 2,265.09 : x
  2. Step 2: Convert to fraction form
    7,811.87/11,717.46 = 2,265.09/x
  3. Step 3: Cross multiply
    7,811.87x = 11,717.46 × 2,265.09
  4. Step 4: Simplify right side
    7,811.87x = 26,541,101.47
  5. Step 5: Solve for x
    x = 26,541,101.47/7,811.87
  6. Step 6: Final answer
    x = 3,397.54

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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.