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Finding the Fourth Proportional to 8,915.60, 12,303.44 and 4,936.68

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Solution

The fourth proportional to 8,915.60, 12,303.44 and 4,936.68 is: 6,812.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.60 : 12,303.44 = 4,936.68 : x
  2. Step 2: Convert to fraction form
    8,915.60/12,303.44 = 4,936.68/x
  3. Step 3: Cross multiply
    8,915.60x = 12,303.44 × 4,936.68
  4. Step 4: Simplify right side
    8,915.60x = 60,738,146.18
  5. Step 5: Solve for x
    x = 60,738,146.18/8,915.60
  6. Step 6: Final answer
    x = 6,812.57

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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.