Home / 13,815.96-20,727.42-3,956.10

Finding the Fourth Proportional to 13,815.96, 20,727.42 and 3,956.10

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Solution

The fourth proportional to 13,815.96, 20,727.42 and 3,956.10 is: 5,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.96 : 20,727.42 = 3,956.10 : x
  2. Step 2: Convert to fraction form
    13,815.96/20,727.42 = 3,956.10/x
  3. Step 3: Cross multiply
    13,815.96x = 20,727.42 × 3,956.10
  4. Step 4: Simplify right side
    13,815.96x = 81,999,746.26
  5. Step 5: Solve for x
    x = 81,999,746.26/13,815.96
  6. Step 6: Final answer
    x = 5,935.15

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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.