Home / 13,653.96-20,493.78-7,084.80

Finding the Fourth Proportional to 13,653.96, 20,493.78 and 7,084.80

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Solution

The fourth proportional to 13,653.96, 20,493.78 and 7,084.80 is: 10,633.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.96 : 20,493.78 = 7,084.80 : x
  2. Step 2: Convert to fraction form
    13,653.96/20,493.78 = 7,084.80/x
  3. Step 3: Cross multiply
    13,653.96x = 20,493.78 × 7,084.80
  4. Step 4: Simplify right side
    13,653.96x = 145,194,332.54
  5. Step 5: Solve for x
    x = 145,194,332.54/13,653.96
  6. Step 6: Final answer
    x = 10,633.86

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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.