Home / 13,505.45-20,273.09-7,962.80

Finding the Fourth Proportional to 13,505.45, 20,273.09 and 7,962.80

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Solution

The fourth proportional to 13,505.45, 20,273.09 and 7,962.80 is: 11,952.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.45 : 20,273.09 = 7,962.80 : x
  2. Step 2: Convert to fraction form
    13,505.45/20,273.09 = 7,962.80/x
  3. Step 3: Cross multiply
    13,505.45x = 20,273.09 × 7,962.80
  4. Step 4: Simplify right side
    13,505.45x = 161,430,419.87
  5. Step 5: Solve for x
    x = 161,430,419.87/13,505.45
  6. Step 6: Final answer
    x = 11,952.99

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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.