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Finding the Fourth Proportional to 14,474.18, 19,974.72 and 8,100.71

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Solution

The fourth proportional to 14,474.18, 19,974.72 and 8,100.71 is: 11,179.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,474.18 : 19,974.72 = 8,100.71 : x
  2. Step 2: Convert to fraction form
    14,474.18/19,974.72 = 8,100.71/x
  3. Step 3: Cross multiply
    14,474.18x = 19,974.72 × 8,100.71
  4. Step 4: Simplify right side
    14,474.18x = 161,809,463.99
  5. Step 5: Solve for x
    x = 161,809,463.99/14,474.18
  6. Step 6: Final answer
    x = 11,179.18

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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.