Home / 13,238.28-19,857.42-6,669.99

Finding the Fourth Proportional to 13,238.28, 19,857.42 and 6,669.99

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Solution

The fourth proportional to 13,238.28, 19,857.42 and 6,669.99 is: 10,004.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,238.28 : 19,857.42 = 6,669.99 : x
  2. Step 2: Convert to fraction form
    13,238.28/19,857.42 = 6,669.99/x
  3. Step 3: Cross multiply
    13,238.28x = 19,857.42 × 6,669.99
  4. Step 4: Simplify right side
    13,238.28x = 132,448,792.83
  5. Step 5: Solve for x
    x = 132,448,792.83/13,238.28
  6. Step 6: Final answer
    x = 10,004.99

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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.