Home / 11,515.96-17,273.75-5,187.32

Finding the Fourth Proportional to 11,515.96, 17,273.75 and 5,187.32

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Solution

The fourth proportional to 11,515.96, 17,273.75 and 5,187.32 is: 7,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,515.96 : 17,273.75 = 5,187.32 : x
  2. Step 2: Convert to fraction form
    11,515.96/17,273.75 = 5,187.32/x
  3. Step 3: Cross multiply
    11,515.96x = 17,273.75 × 5,187.32
  4. Step 4: Simplify right side
    11,515.96x = 89,604,468.85
  5. Step 5: Solve for x
    x = 89,604,468.85/11,515.96
  6. Step 6: Final answer
    x = 7,780.89

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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.