Home / 13,896.28-20,801.22-9,999.64

Finding the Fourth Proportional to 13,896.28, 20,801.22 and 9,999.64

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Solution

The fourth proportional to 13,896.28, 20,801.22 and 9,999.64 is: 14,968.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,896.28 : 20,801.22 = 9,999.64 : x
  2. Step 2: Convert to fraction form
    13,896.28/20,801.22 = 9,999.64/x
  3. Step 3: Cross multiply
    13,896.28x = 20,801.22 × 9,999.64
  4. Step 4: Simplify right side
    13,896.28x = 208,004,711.56
  5. Step 5: Solve for x
    x = 208,004,711.56/13,896.28
  6. Step 6: Final answer
    x = 14,968.37

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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.