Home / 13,161.99-19,746.11-3,927.75

Finding the Fourth Proportional to 13,161.99, 19,746.11 and 3,927.75

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Solution

The fourth proportional to 13,161.99, 19,746.11 and 3,927.75 is: 5,892.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,161.99 : 19,746.11 = 3,927.75 : x
  2. Step 2: Convert to fraction form
    13,161.99/19,746.11 = 3,927.75/x
  3. Step 3: Cross multiply
    13,161.99x = 19,746.11 × 3,927.75
  4. Step 4: Simplify right side
    13,161.99x = 77,557,763.91
  5. Step 5: Solve for x
    x = 77,557,763.91/13,161.99
  6. Step 6: Final answer
    x = 5,892.56

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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.