Home / 13,422.82-20,137.86-9,551.80

Finding the Fourth Proportional to 13,422.82, 20,137.86 and 9,551.80

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Solution

The fourth proportional to 13,422.82, 20,137.86 and 9,551.80 is: 14,330.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,422.82 : 20,137.86 = 9,551.80 : x
  2. Step 2: Convert to fraction form
    13,422.82/20,137.86 = 9,551.80/x
  3. Step 3: Cross multiply
    13,422.82x = 20,137.86 × 9,551.80
  4. Step 4: Simplify right side
    13,422.82x = 192,352,811.15
  5. Step 5: Solve for x
    x = 192,352,811.15/13,422.82
  6. Step 6: Final answer
    x = 14,330.28

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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.