Home / 11,765.43-17,652.78-5,187.02

Finding the Fourth Proportional to 11,765.43, 17,652.78 and 5,187.02

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Solution

The fourth proportional to 11,765.43, 17,652.78 and 5,187.02 is: 7,782.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,765.43 : 17,652.78 = 5,187.02 : x
  2. Step 2: Convert to fraction form
    11,765.43/17,652.78 = 5,187.02/x
  3. Step 3: Cross multiply
    11,765.43x = 17,652.78 × 5,187.02
  4. Step 4: Simplify right side
    11,765.43x = 91,565,234.65
  5. Step 5: Solve for x
    x = 91,565,234.65/11,765.43
  6. Step 6: Final answer
    x = 7,782.57

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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.