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Finding the Fourth Proportional to 8,964.46, 12,371.92 and 5,187.56

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Solution

The fourth proportional to 8,964.46, 12,371.92 and 5,187.56 is: 7,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,964.46 : 12,371.92 = 5,187.56 : x
  2. Step 2: Convert to fraction form
    8,964.46/12,371.92 = 5,187.56/x
  3. Step 3: Cross multiply
    8,964.46x = 12,371.92 × 5,187.56
  4. Step 4: Simplify right side
    8,964.46x = 64,180,101.26
  5. Step 5: Solve for x
    x = 64,180,101.26/8,964.46
  6. Step 6: Final answer
    x = 7,159.40

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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.