Home / 13,921.53-20,845.35-10,889.34

Finding the Fourth Proportional to 13,921.53, 20,845.35 and 10,889.34

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Solution

The fourth proportional to 13,921.53, 20,845.35 and 10,889.34 is: 16,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.53 : 20,845.35 = 10,889.34 : x
  2. Step 2: Convert to fraction form
    13,921.53/20,845.35 = 10,889.34/x
  3. Step 3: Cross multiply
    13,921.53x = 20,845.35 × 10,889.34
  4. Step 4: Simplify right side
    13,921.53x = 226,992,103.57
  5. Step 5: Solve for x
    x = 226,992,103.57/13,921.53
  6. Step 6: Final answer
    x = 16,305.11

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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.