Home / 13,919.52-20,868.56-4,553.86

Finding the Fourth Proportional to 13,919.52, 20,868.56 and 4,553.86

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Solution

The fourth proportional to 13,919.52, 20,868.56 and 4,553.86 is: 6,827.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.52 : 20,868.56 = 4,553.86 : x
  2. Step 2: Convert to fraction form
    13,919.52/20,868.56 = 4,553.86/x
  3. Step 3: Cross multiply
    13,919.52x = 20,868.56 × 4,553.86
  4. Step 4: Simplify right side
    13,919.52x = 95,032,500.64
  5. Step 5: Solve for x
    x = 95,032,500.64/13,919.52
  6. Step 6: Final answer
    x = 6,827.28

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1.5x scale

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.