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Finding the Fourth Proportional to 12,474.11, 17,217.23 and 7,172.01

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Solution

The fourth proportional to 12,474.11, 17,217.23 and 7,172.01 is: 9,899.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474.11 : 17,217.23 = 7,172.01 : x
  2. Step 2: Convert to fraction form
    12,474.11/17,217.23 = 7,172.01/x
  3. Step 3: Cross multiply
    12,474.11x = 17,217.23 × 7,172.01
  4. Step 4: Simplify right side
    12,474.11x = 123,482,109.87
  5. Step 5: Solve for x
    x = 123,482,109.87/12,474.11
  6. Step 6: Final answer
    x = 9,899.08

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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.