Home / 13,581.14-20,372.99-4,813.97

Finding the Fourth Proportional to 13,581.14, 20,372.99 and 4,813.97

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Solution

The fourth proportional to 13,581.14, 20,372.99 and 4,813.97 is: 7,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,581.14 : 20,372.99 = 4,813.97 : x
  2. Step 2: Convert to fraction form
    13,581.14/20,372.99 = 4,813.97/x
  3. Step 3: Cross multiply
    13,581.14x = 20,372.99 × 4,813.97
  4. Step 4: Simplify right side
    13,581.14x = 98,074,836.74
  5. Step 5: Solve for x
    x = 98,074,836.74/13,581.14
  6. Step 6: Final answer
    x = 7,221.40

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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.