Home / 13,441.28-20,161.92-4,208

Finding the Fourth Proportional to 13,441.28, 20,161.92 and 4,208

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Solution

The fourth proportional to 13,441.28, 20,161.92 and 4,208 is: 6,312

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.28 : 20,161.92 = 4,208 : x
  2. Step 2: Convert to fraction form
    13,441.28/20,161.92 = 4,208/x
  3. Step 3: Cross multiply
    13,441.28x = 20,161.92 × 4,208
  4. Step 4: Simplify right side
    13,441.28x = 84,841,359.36
  5. Step 5: Solve for x
    x = 84,841,359.36/13,441.28
  6. Step 6: Final answer
    x = 6,312

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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.