Home / 14,635.73-20,197.31-7,921.41

Finding the Fourth Proportional to 14,635.73, 20,197.31 and 7,921.41

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Solution

The fourth proportional to 14,635.73, 20,197.31 and 7,921.41 is: 10,931.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,635.73 : 20,197.31 = 7,921.41 : x
  2. Step 2: Convert to fraction form
    14,635.73/20,197.31 = 7,921.41/x
  3. Step 3: Cross multiply
    14,635.73x = 20,197.31 × 7,921.41
  4. Step 4: Simplify right side
    14,635.73x = 159,991,133.80
  5. Step 5: Solve for x
    x = 159,991,133.80/14,635.73
  6. Step 6: Final answer
    x = 10,931.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.