Home / 13,671.68-20,507.97-4,311.79

Finding the Fourth Proportional to 13,671.68, 20,507.97 and 4,311.79

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Solution

The fourth proportional to 13,671.68, 20,507.97 and 4,311.79 is: 6,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.68 : 20,507.97 = 4,311.79 : x
  2. Step 2: Convert to fraction form
    13,671.68/20,507.97 = 4,311.79/x
  3. Step 3: Cross multiply
    13,671.68x = 20,507.97 × 4,311.79
  4. Step 4: Simplify right side
    13,671.68x = 88,426,100.46
  5. Step 5: Solve for x
    x = 88,426,100.46/13,671.68
  6. Step 6: Final answer
    x = 6,467.83

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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.