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Finding the Fourth Proportional to 12,612.13, 17,405.27 and 7,023.13

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Solution

The fourth proportional to 12,612.13, 17,405.27 and 7,023.13 is: 9,692.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,612.13 : 17,405.27 = 7,023.13 : x
  2. Step 2: Convert to fraction form
    12,612.13/17,405.27 = 7,023.13/x
  3. Step 3: Cross multiply
    12,612.13x = 17,405.27 × 7,023.13
  4. Step 4: Simplify right side
    12,612.13x = 122,239,404.43
  5. Step 5: Solve for x
    x = 122,239,404.43/12,612.13
  6. Step 6: Final answer
    x = 9,692.21

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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.