Home / 13,965.62-20,947.14-5,643.27

Finding the Fourth Proportional to 13,965.62, 20,947.14 and 5,643.27

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Solution

The fourth proportional to 13,965.62, 20,947.14 and 5,643.27 is: 8,464.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.62 : 20,947.14 = 5,643.27 : x
  2. Step 2: Convert to fraction form
    13,965.62/20,947.14 = 5,643.27/x
  3. Step 3: Cross multiply
    13,965.62x = 20,947.14 × 5,643.27
  4. Step 4: Simplify right side
    13,965.62x = 118,210,366.75
  5. Step 5: Solve for x
    x = 118,210,366.75/13,965.62
  6. Step 6: Final answer
    x = 8,464.39

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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.