Home / 13,187.31-19,768.96-4,861.52

Finding the Fourth Proportional to 13,187.31, 19,768.96 and 4,861.52

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Solution

The fourth proportional to 13,187.31, 19,768.96 and 4,861.52 is: 7,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.31 : 19,768.96 = 4,861.52 : x
  2. Step 2: Convert to fraction form
    13,187.31/19,768.96 = 4,861.52/x
  3. Step 3: Cross multiply
    13,187.31x = 19,768.96 × 4,861.52
  4. Step 4: Simplify right side
    13,187.31x = 96,107,175.78
  5. Step 5: Solve for x
    x = 96,107,175.78/13,187.31
  6. Step 6: Final answer
    x = 7,287.85

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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.