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Finding the Fourth Proportional to 14,474.01, 21,724.41 and 8,938.20

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Solution

The fourth proportional to 14,474.01, 21,724.41 and 8,938.20 is: 13,415.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,474.01 : 21,724.41 = 8,938.20 : x
  2. Step 2: Convert to fraction form
    14,474.01/21,724.41 = 8,938.20/x
  3. Step 3: Cross multiply
    14,474.01x = 21,724.41 × 8,938.20
  4. Step 4: Simplify right side
    14,474.01x = 194,177,121.46
  5. Step 5: Solve for x
    x = 194,177,121.46/14,474.01
  6. Step 6: Final answer
    x = 13,415.57

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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.