Home / 13,854.08-20,781.24-3,465.86

Finding the Fourth Proportional to 13,854.08, 20,781.24 and 3,465.86

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Solution

The fourth proportional to 13,854.08, 20,781.24 and 3,465.86 is: 5,198.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.08 : 20,781.24 = 3,465.86 : x
  2. Step 2: Convert to fraction form
    13,854.08/20,781.24 = 3,465.86/x
  3. Step 3: Cross multiply
    13,854.08x = 20,781.24 × 3,465.86
  4. Step 4: Simplify right side
    13,854.08x = 72,024,868.47
  5. Step 5: Solve for x
    x = 72,024,868.47/13,854.08
  6. Step 6: Final answer
    x = 5,198.82

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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.