Home / 13,351.44-20,026.94-3,991.48

Finding the Fourth Proportional to 13,351.44, 20,026.94 and 3,991.48

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Solution

The fourth proportional to 13,351.44, 20,026.94 and 3,991.48 is: 5,987.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.44 : 20,026.94 = 3,991.48 : x
  2. Step 2: Convert to fraction form
    13,351.44/20,026.94 = 3,991.48/x
  3. Step 3: Cross multiply
    13,351.44x = 20,026.94 × 3,991.48
  4. Step 4: Simplify right side
    13,351.44x = 79,937,130.47
  5. Step 5: Solve for x
    x = 79,937,130.47/13,351.44
  6. Step 6: Final answer
    x = 5,987.15

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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.