Home / 13,366.80-20,039.52-6,343.28

Finding the Fourth Proportional to 13,366.80, 20,039.52 and 6,343.28

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Solution

The fourth proportional to 13,366.80, 20,039.52 and 6,343.28 is: 9,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.80 : 20,039.52 = 6,343.28 : x
  2. Step 2: Convert to fraction form
    13,366.80/20,039.52 = 6,343.28/x
  3. Step 3: Cross multiply
    13,366.80x = 20,039.52 × 6,343.28
  4. Step 4: Simplify right side
    13,366.80x = 127,116,286.43
  5. Step 5: Solve for x
    x = 127,116,286.43/13,366.80
  6. Step 6: Final answer
    x = 9,509.85

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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.