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Finding the Fourth Proportional to 8,863.60, 13,278.38 and 4,956.16

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Solution

The fourth proportional to 8,863.60, 13,278.38 and 4,956.16 is: 7,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.60 : 13,278.38 = 4,956.16 : x
  2. Step 2: Convert to fraction form
    8,863.60/13,278.38 = 4,956.16/x
  3. Step 3: Cross multiply
    8,863.60x = 13,278.38 × 4,956.16
  4. Step 4: Simplify right side
    8,863.60x = 65,809,775.82
  5. Step 5: Solve for x
    x = 65,809,775.82/8,863.60
  6. Step 6: Final answer
    x = 7,424.72

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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.