Home / 13,718.92-20,565.42-5,404.36

Finding the Fourth Proportional to 13,718.92, 20,565.42 and 5,404.36

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Solution

The fourth proportional to 13,718.92, 20,565.42 and 5,404.36 is: 8,101.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.92 : 20,565.42 = 5,404.36 : x
  2. Step 2: Convert to fraction form
    13,718.92/20,565.42 = 5,404.36/x
  3. Step 3: Cross multiply
    13,718.92x = 20,565.42 × 5,404.36
  4. Step 4: Simplify right side
    13,718.92x = 111,142,933.23
  5. Step 5: Solve for x
    x = 111,142,933.23/13,718.92
  6. Step 6: Final answer
    x = 8,101.43

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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.