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Finding the Fourth Proportional to 11,402.71, 17,090.43 and 7,455.88

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Solution

The fourth proportional to 11,402.71, 17,090.43 and 7,455.88 is: 11,174.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,402.71 : 17,090.43 = 7,455.88 : x
  2. Step 2: Convert to fraction form
    11,402.71/17,090.43 = 7,455.88/x
  3. Step 3: Cross multiply
    11,402.71x = 17,090.43 × 7,455.88
  4. Step 4: Simplify right side
    11,402.71x = 127,424,188.63
  5. Step 5: Solve for x
    x = 127,424,188.63/11,402.71
  6. Step 6: Final answer
    x = 11,174.91

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.