Home / 13,342.06-20,006.56-7,796.80

Finding the Fourth Proportional to 13,342.06, 20,006.56 and 7,796.80

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Solution

The fourth proportional to 13,342.06, 20,006.56 and 7,796.80 is: 11,691.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,342.06 : 20,006.56 = 7,796.80 : x
  2. Step 2: Convert to fraction form
    13,342.06/20,006.56 = 7,796.80/x
  3. Step 3: Cross multiply
    13,342.06x = 20,006.56 × 7,796.80
  4. Step 4: Simplify right side
    13,342.06x = 155,987,147.01
  5. Step 5: Solve for x
    x = 155,987,147.01/13,342.06
  6. Step 6: Final answer
    x = 11,691.38

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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.