Home / 13,940.64-20,918.12-9,263.86

Finding the Fourth Proportional to 13,940.64, 20,918.12 and 9,263.86

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Solution

The fourth proportional to 13,940.64, 20,918.12 and 9,263.86 is: 13,900.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.64 : 20,918.12 = 9,263.86 : x
  2. Step 2: Convert to fraction form
    13,940.64/20,918.12 = 9,263.86/x
  3. Step 3: Cross multiply
    13,940.64x = 20,918.12 × 9,263.86
  4. Step 4: Simplify right side
    13,940.64x = 193,782,436.53
  5. Step 5: Solve for x
    x = 193,782,436.53/13,940.64
  6. Step 6: Final answer
    x = 13,900.54

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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.