Home / 13,366.29-20,043.30-3,876.45

Finding the Fourth Proportional to 13,366.29, 20,043.30 and 3,876.45

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Solution

The fourth proportional to 13,366.29, 20,043.30 and 3,876.45 is: 5,812.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.29 : 20,043.30 = 3,876.45 : x
  2. Step 2: Convert to fraction form
    13,366.29/20,043.30 = 3,876.45/x
  3. Step 3: Cross multiply
    13,366.29x = 20,043.30 × 3,876.45
  4. Step 4: Simplify right side
    13,366.29x = 77,696,850.29
  5. Step 5: Solve for x
    x = 77,696,850.29/13,366.29
  6. Step 6: Final answer
    x = 5,812.90

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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.