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Finding the Fourth Proportional to 8,760.14, 13,142.64 and 4,867.28

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Solution

The fourth proportional to 8,760.14, 13,142.64 and 4,867.28 is: 7,302.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.14 : 13,142.64 = 4,867.28 : x
  2. Step 2: Convert to fraction form
    8,760.14/13,142.64 = 4,867.28/x
  3. Step 3: Cross multiply
    8,760.14x = 13,142.64 × 4,867.28
  4. Step 4: Simplify right side
    8,760.14x = 63,968,908.82
  5. Step 5: Solve for x
    x = 63,968,908.82/8,760.14
  6. Step 6: Final answer
    x = 7,302.27

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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.