Home / 8,324.07-12,486.59-3,129.99

Finding the Fourth Proportional to 8,324.07, 12,486.59 and 3,129.99

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Solution

The fourth proportional to 8,324.07, 12,486.59 and 3,129.99 is: 4,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,324.07 : 12,486.59 = 3,129.99 : x
  2. Step 2: Convert to fraction form
    8,324.07/12,486.59 = 3,129.99/x
  3. Step 3: Cross multiply
    8,324.07x = 12,486.59 × 3,129.99
  4. Step 4: Simplify right side
    8,324.07x = 39,082,933.05
  5. Step 5: Solve for x
    x = 39,082,933.05/8,324.07
  6. Step 6: Final answer
    x = 4,695.17

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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.