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Finding the Fourth Proportional to 8,915.66, 12,303.09 and 4,936.52

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Solution

The fourth proportional to 8,915.66, 12,303.09 and 4,936.52 is: 6,812.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.66 : 12,303.09 = 4,936.52 : x
  2. Step 2: Convert to fraction form
    8,915.66/12,303.09 = 4,936.52/x
  3. Step 3: Cross multiply
    8,915.66x = 12,303.09 × 4,936.52
  4. Step 4: Simplify right side
    8,915.66x = 60,734,449.85
  5. Step 5: Solve for x
    x = 60,734,449.85/8,915.66
  6. Step 6: Final answer
    x = 6,812.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.