Home / 15,455.80-23,183.70-7,665.22

Finding the Fourth Proportional to 15,455.80, 23,183.70 and 7,665.22

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Solution

The fourth proportional to 15,455.80, 23,183.70 and 7,665.22 is: 11,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,455.80 : 23,183.70 = 7,665.22 : x
  2. Step 2: Convert to fraction form
    15,455.80/23,183.70 = 7,665.22/x
  3. Step 3: Cross multiply
    15,455.80x = 23,183.70 × 7,665.22
  4. Step 4: Simplify right side
    15,455.80x = 177,708,160.91
  5. Step 5: Solve for x
    x = 177,708,160.91/15,455.80
  6. Step 6: Final answer
    x = 11,497.83

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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.