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Finding the Fourth Proportional to 14,445.49, 19,934.39 and 8,072.13

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Solution

The fourth proportional to 14,445.49, 19,934.39 and 8,072.13 is: 11,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,445.49 : 19,934.39 = 8,072.13 : x
  2. Step 2: Convert to fraction form
    14,445.49/19,934.39 = 8,072.13/x
  3. Step 3: Cross multiply
    14,445.49x = 19,934.39 × 8,072.13
  4. Step 4: Simplify right side
    14,445.49x = 160,912,987.55
  5. Step 5: Solve for x
    x = 160,912,987.55/14,445.49
  6. Step 6: Final answer
    x = 11,139.33

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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.