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Finding the Fourth Proportional to 8,916.10, 12,303.84 and 4,936.96

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Solution

The fourth proportional to 8,916.10, 12,303.84 and 4,936.96 is: 6,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,916.10 : 12,303.84 = 4,936.96 : x
  2. Step 2: Convert to fraction form
    8,916.10/12,303.84 = 4,936.96/x
  3. Step 3: Cross multiply
    8,916.10x = 12,303.84 × 4,936.96
  4. Step 4: Simplify right side
    8,916.10x = 60,743,565.93
  5. Step 5: Solve for x
    x = 60,743,565.93/8,916.10
  6. Step 6: Final answer
    x = 6,812.80

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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.