Home / 13,664.27-20,455.09-9,717.14

Finding the Fourth Proportional to 13,664.27, 20,455.09 and 9,717.14

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Solution

The fourth proportional to 13,664.27, 20,455.09 and 9,717.14 is: 14,546.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.27 : 20,455.09 = 9,717.14 : x
  2. Step 2: Convert to fraction form
    13,664.27/20,455.09 = 9,717.14/x
  3. Step 3: Cross multiply
    13,664.27x = 20,455.09 × 9,717.14
  4. Step 4: Simplify right side
    13,664.27x = 198,764,973.24
  5. Step 5: Solve for x
    x = 198,764,973.24/13,664.27
  6. Step 6: Final answer
    x = 14,546.33

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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.