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Finding the Fourth Proportional to 9,168.28, 12,652.02 and 5,189.20

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Solution

The fourth proportional to 9,168.28, 12,652.02 and 5,189.20 is: 7,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.28 : 12,652.02 = 5,189.20 : x
  2. Step 2: Convert to fraction form
    9,168.28/12,652.02 = 5,189.20/x
  3. Step 3: Cross multiply
    9,168.28x = 12,652.02 × 5,189.20
  4. Step 4: Simplify right side
    9,168.28x = 65,653,862.18
  5. Step 5: Solve for x
    x = 65,653,862.18/9,168.28
  6. Step 6: Final answer
    x = 7,160.98

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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.