Home / 13,911.04-20,838.73-8,361.37

Finding the Fourth Proportional to 13,911.04, 20,838.73 and 8,361.37

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Solution

The fourth proportional to 13,911.04, 20,838.73 and 8,361.37 is: 12,525.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,911.04 : 20,838.73 = 8,361.37 : x
  2. Step 2: Convert to fraction form
    13,911.04/20,838.73 = 8,361.37/x
  3. Step 3: Cross multiply
    13,911.04x = 20,838.73 × 8,361.37
  4. Step 4: Simplify right side
    13,911.04x = 174,240,331.86
  5. Step 5: Solve for x
    x = 174,240,331.86/13,911.04
  6. Step 6: Final answer
    x = 12,525.33

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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.