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Finding the Fourth Proportional to 14,400.74, 19,872.72 and 8,113.11

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Solution

The fourth proportional to 14,400.74, 19,872.72 and 8,113.11 is: 11,195.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,400.74 : 19,872.72 = 8,113.11 : x
  2. Step 2: Convert to fraction form
    14,400.74/19,872.72 = 8,113.11/x
  3. Step 3: Cross multiply
    14,400.74x = 19,872.72 × 8,113.11
  4. Step 4: Simplify right side
    14,400.74x = 161,229,563.36
  5. Step 5: Solve for x
    x = 161,229,563.36/14,400.74
  6. Step 6: Final answer
    x = 11,195.93

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