Home / 13,806.72-19,046.34-8,493.12

Finding the Fourth Proportional to 13,806.72, 19,046.34 and 8,493.12

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Solution

The fourth proportional to 13,806.72, 19,046.34 and 8,493.12 is: 11,716.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.72 : 19,046.34 = 8,493.12 : x
  2. Step 2: Convert to fraction form
    13,806.72/19,046.34 = 8,493.12/x
  3. Step 3: Cross multiply
    13,806.72x = 19,046.34 × 8,493.12
  4. Step 4: Simplify right side
    13,806.72x = 161,762,851.18
  5. Step 5: Solve for x
    x = 161,762,851.18/13,806.72
  6. Step 6: Final answer
    x = 11,716.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.