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Finding the Fourth Proportional to 12,383.63, 17,090.61 and 7,077.44

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Solution

The fourth proportional to 12,383.63, 17,090.61 and 7,077.44 is: 9,767.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.63 : 17,090.61 = 7,077.44 : x
  2. Step 2: Convert to fraction form
    12,383.63/17,090.61 = 7,077.44/x
  3. Step 3: Cross multiply
    12,383.63x = 17,090.61 × 7,077.44
  4. Step 4: Simplify right side
    12,383.63x = 120,957,681.39
  5. Step 5: Solve for x
    x = 120,957,681.39/12,383.63
  6. Step 6: Final answer
    x = 9,767.55

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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.