Home / 13,830.58-20,727.27-7,581.22

Finding the Fourth Proportional to 13,830.58, 20,727.27 and 7,581.22

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Solution

The fourth proportional to 13,830.58, 20,727.27 and 7,581.22 is: 11,361.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.58 : 20,727.27 = 7,581.22 : x
  2. Step 2: Convert to fraction form
    13,830.58/20,727.27 = 7,581.22/x
  3. Step 3: Cross multiply
    13,830.58x = 20,727.27 × 7,581.22
  4. Step 4: Simplify right side
    13,830.58x = 157,137,993.87
  5. Step 5: Solve for x
    x = 157,137,993.87/13,830.58
  6. Step 6: Final answer
    x = 11,361.63

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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.