Home / 18,417.24-27,608.70-7,321.80

Finding the Fourth Proportional to 18,417.24, 27,608.70 and 7,321.80

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Solution

The fourth proportional to 18,417.24, 27,608.70 and 7,321.80 is: 10,975.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,417.24 : 27,608.70 = 7,321.80 : x
  2. Step 2: Convert to fraction form
    18,417.24/27,608.70 = 7,321.80/x
  3. Step 3: Cross multiply
    18,417.24x = 27,608.70 × 7,321.80
  4. Step 4: Simplify right side
    18,417.24x = 202,145,379.66
  5. Step 5: Solve for x
    x = 202,145,379.66/18,417.24
  6. Step 6: Final answer
    x = 10,975.88

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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.