Home / 13,836.43-20,749.54-4,949.35

Finding the Fourth Proportional to 13,836.43, 20,749.54 and 4,949.35

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Solution

The fourth proportional to 13,836.43, 20,749.54 and 4,949.35 is: 7,422.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.43 : 20,749.54 = 4,949.35 : x
  2. Step 2: Convert to fraction form
    13,836.43/20,749.54 = 4,949.35/x
  3. Step 3: Cross multiply
    13,836.43x = 20,749.54 × 4,949.35
  4. Step 4: Simplify right side
    13,836.43x = 102,696,607.30
  5. Step 5: Solve for x
    x = 102,696,607.30/13,836.43
  6. Step 6: Final answer
    x = 7,422.19

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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.