Home / 13,679.88-20,522.52-4,321.34

Finding the Fourth Proportional to 13,679.88, 20,522.52 and 4,321.34

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Solution

The fourth proportional to 13,679.88, 20,522.52 and 4,321.34 is: 6,482.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,679.88 : 20,522.52 = 4,321.34 : x
  2. Step 2: Convert to fraction form
    13,679.88/20,522.52 = 4,321.34/x
  3. Step 3: Cross multiply
    13,679.88x = 20,522.52 × 4,321.34
  4. Step 4: Simplify right side
    13,679.88x = 88,684,764.97
  5. Step 5: Solve for x
    x = 88,684,764.97/13,679.88
  6. Step 6: Final answer
    x = 6,482.86

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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.