Home / 13,326.48-19,990.68-3,838.41

Finding the Fourth Proportional to 13,326.48, 19,990.68 and 3,838.41

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Solution

The fourth proportional to 13,326.48, 19,990.68 and 3,838.41 is: 5,757.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.48 : 19,990.68 = 3,838.41 : x
  2. Step 2: Convert to fraction form
    13,326.48/19,990.68 = 3,838.41/x
  3. Step 3: Cross multiply
    13,326.48x = 19,990.68 × 3,838.41
  4. Step 4: Simplify right side
    13,326.48x = 76,732,426.02
  5. Step 5: Solve for x
    x = 76,732,426.02/13,326.48
  6. Step 6: Final answer
    x = 5,757.89

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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.