Home / 13,921.30-20,889.13-9,244.54

Finding the Fourth Proportional to 13,921.30, 20,889.13 and 9,244.54

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Solution

The fourth proportional to 13,921.30, 20,889.13 and 9,244.54 is: 13,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921.30 : 20,889.13 = 9,244.54 : x
  2. Step 2: Convert to fraction form
    13,921.30/20,889.13 = 9,244.54/x
  3. Step 3: Cross multiply
    13,921.30x = 20,889.13 × 9,244.54
  4. Step 4: Simplify right side
    13,921.30x = 193,110,322.52
  5. Step 5: Solve for x
    x = 193,110,322.52/13,921.30
  6. Step 6: Final answer
    x = 13,871.58

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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.