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Finding the Fourth Proportional to 8,343.73, 11,515.10 and 4,807.68

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Solution

The fourth proportional to 8,343.73, 11,515.10 and 4,807.68 is: 6,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,343.73 : 11,515.10 = 4,807.68 : x
  2. Step 2: Convert to fraction form
    8,343.73/11,515.10 = 4,807.68/x
  3. Step 3: Cross multiply
    8,343.73x = 11,515.10 × 4,807.68
  4. Step 4: Simplify right side
    8,343.73x = 55,360,915.97
  5. Step 5: Solve for x
    x = 55,360,915.97/8,343.73
  6. Step 6: Final answer
    x = 6,635.03

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1.5x scale

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.