Home / 8,729.29-13,085.99-3,181.37

Finding the Fourth Proportional to 8,729.29, 13,085.99 and 3,181.37

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Solution

The fourth proportional to 8,729.29, 13,085.99 and 3,181.37 is: 4,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.29 : 13,085.99 = 3,181.37 : x
  2. Step 2: Convert to fraction form
    8,729.29/13,085.99 = 3,181.37/x
  3. Step 3: Cross multiply
    8,729.29x = 13,085.99 × 3,181.37
  4. Step 4: Simplify right side
    8,729.29x = 41,631,294.67
  5. Step 5: Solve for x
    x = 41,631,294.67/8,729.29
  6. Step 6: Final answer
    x = 4,769.15

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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.