Home / 13,490.82-20,245.32-4,725.80

Finding the Fourth Proportional to 13,490.82, 20,245.32 and 4,725.80

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Solution

The fourth proportional to 13,490.82, 20,245.32 and 4,725.80 is: 7,091.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.82 : 20,245.32 = 4,725.80 : x
  2. Step 2: Convert to fraction form
    13,490.82/20,245.32 = 4,725.80/x
  3. Step 3: Cross multiply
    13,490.82x = 20,245.32 × 4,725.80
  4. Step 4: Simplify right side
    13,490.82x = 95,675,333.26
  5. Step 5: Solve for x
    x = 95,675,333.26/13,490.82
  6. Step 6: Final answer
    x = 7,091.88

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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.