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Finding the Fourth Proportional to 11,455.68, 17,154.08 and 10,153.28

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Solution

The fourth proportional to 11,455.68, 17,154.08 and 10,153.28 is: 15,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.68 : 17,154.08 = 10,153.28 : x
  2. Step 2: Convert to fraction form
    11,455.68/17,154.08 = 10,153.28/x
  3. Step 3: Cross multiply
    11,455.68x = 17,154.08 × 10,153.28
  4. Step 4: Simplify right side
    11,455.68x = 174,170,177.38
  5. Step 5: Solve for x
    x = 174,170,177.38/11,455.68
  6. Step 6: Final answer
    x = 15,203.83

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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.